I use my regular wave boom with 30 inch lines but when I foil I tend to feel they are sometimes too long and other times too short. Perhaps depends on my sailing angle. I freeriding a Moses vento and sails are Gators or blades. I am comfortable and can cover distances just feel I could refine and improve. Do people use adjustable lines much ? Some adjustable lines aren't that easy to adjust on the fly.
I find adjustable lines better on foil, always used fixed on fin, but changed to adjustable for foil, i do run shorter lines on foil V fin
Maybe as i get better on the foil fixed might be an option
EG - with same harness- I fin with 34 and Foil at 24
When I started foiling I always used adjustables as I found I desperately needed much shorter lines than my normal 32s - this was mainly to stay in the lines and also keeping enough mast foot pressure to settle the board. Now that I have got to the intermediate stage on a Slingshot i76 and i99 also with Blades and Gators, Im really not noticing line length as a critical issue. When I use my wave boom with the 32s (when my daughter steals my other boom) it feels fine. Im guessing this is because as a foiling beginner I was trying to sheet more like a windsurfer (lean back), but I have now adapted to a more upright, hinged at the waist stance with less sheeting in for freeride foiling. Getting more relaxed as you get better also helps as in the early days I was so scared my arms were overriding the longer lines.
To start with I was using shorter lines foiling but now I'm using Ion 34" adjustable lines on the maximum setting (waist harness). Occasionally I'll pull them in an inch or two in really light winds if I'm going upwind.
I find long lines allow me to handle more power in the sail and give me the ability to sheet out further while staying in the harness.
I use adjustable lines for foiling and slalom/speed. For slalom/speed, I rarely adjust them, but when foiling, I often adjust them several times per session. I find the Ion adjustables great for that, since they are easier to make longer and shorter. They are also much cheaper than many other in-flight adjustables.
Pure reaching directions don't seem to require adj lines.
But downwind/swell riding surely benefits from having longer lines or just not hooking in.
I use the same 24" lines, fin or foil, with loose harness straps.
5'10" with slightly shorter wingspan.
I'm at 30" aswell, with a similar story to the rest of the guys, when I started foiling I went much much smaller, but slowely I have gotten back to about average for me. I use 28" in fin.
I also sometimes adjust during sailing, but I try not to, because it distracts from sailing and makes me slower (during race training). I dont use different lengths for different directions, but I do go a littke shorter (28") in lighter winds.
I use the clamcleat adjustable type, I think those are the best. They're called "ION Harnessline Adjustable Race". All others have a different adjustment system (with a clip, like a backpack strap length adjustment) which slips if you're above 85Kg, and is hard to adjust on the fly.
The chinook and Starboard ones have clam cleat and are pretty good too.
I like the starboard ones better.
I just have to remind myself to use them when going upwind !!!
I hate carrying any additional weight on my boom like adjustable lines.
I even weigh my harness lines to find the lightest ones 
the Simmer lines are the lightest having no metal piece.
The thing I hate the most though is sailing with adjustable outhaul.
And no uphaul ropes too!
Select to expand quotepetermac33 said..
....The thing I hate the most though is sailing with adjustable outhaul.
And no uphaul ropes too!
With a big sail, an adjustable outhaul is worth every gram imho. To be able to dial in the power is just amazing especially in light and variable winds. I put it off for too long being too lazy to install it even though I'd used it for years with my formula board.
Life is too short to not have an uphaul rope. I don't go fast enough to worry about the drag and the coffee I sip before going out weighs more. We'll have to agree to disagree on that one.
First season I used the Dakine Adjustables and their junk. Second season back to the fixed.
Select to expand quoteGwarn said..
First season I used the Dakine Adjustables and their junk. Second season back to the fixed.
I added a line here and it got better, but sometimes I still have food on my hands
Select to expand quotepetermac33 said..
I hate carrying any additional weight on my boom like adjustable lines.
I even weigh my harness lines to find the lightest ones the Simmer lines are the lightest having no metal piece.
The thing I hate the most though is sailing with adjustable outhaul.
And no uphaul ropes too!
Wingsails are much lighter than conventional windsurfing rig. No boom or mast
Select to expand quotejusavina said..petermac33 said..
I hate carrying any additional weight on my boom like adjustable lines.
I even weigh my harness lines to find the lightest ones the Simmer lines are the lightest having no metal piece.
The thing I hate the most though is sailing with adjustable outhaul.
And no uphaul ropes too!
Wingsails are much lighter than conventional windsurfing rig. No boom or mast
Duotones have a boom and I saw several wingdinger with a harness and a line on the boom ...
Select to expand quotekiter49 said..jusavina said..petermac33 said..
I hate carrying any additional weight on my boom like adjustable lines.
I even weigh my harness lines to find the lightest ones the Simmer lines are the lightest having no metal piece.
The thing I hate the most though is sailing with adjustable outhaul.
And no uphaul ropes too!
Wingsails are much lighter than conventional windsurfing rig. No boom or mast
Duotones have a boom and I saw several wingdinger with a harness and a line on the boom ...
The boom is a stupid design choice.. i used lines on my Swing a few sessions but then took them off, after you get used to the wing you can do full days without harnesslines.
Select to expand quotekiter49 said..jusavina said..petermac33 said..
I hate carrying any additional weight on my boom like adjustable lines.
I even weigh my harness lines to find the lightest ones the Simmer lines are the lightest having no metal piece.
The thing I hate the most though is sailing with adjustable outhaul.
And no uphaul ropes too!
Wingsails are much lighter than conventional windsurfing rig. No boom or mast
Duotones have a boom and I saw several wingdinger with a harness and a line on the boom ...
You got me there. They only have half a boom though.
Also, I don't have harness lines on my boom when I windfoil with my 3.5 sail.
