Always wanted to minimize my quiver with multiple line lengths. example -
for 6 -10 knots - 50 meter lines and hydrofoil board
10 to 25 knots with 15m lines or so with a twintip
i wish i had an easy way to add / remove such long lines without having to walk out the lines, currently I have separate bars for each line length but its expensive and a bit of a hassle
Can only agree with all of edt's comments on this one
And I think it is a bad way to "minimize" your quiver, honestly.
Shorter lines will not make the kite have less power in more wind (only if below 10m length maybe, and that will not work well).
And longer lines, with typical gradients, will mostly only increase the range (low end) because of the sweep you can add, and only marginally because of more wind up higher.
Too long is not good, not for handling nor for power/performance (except for unusual gradients as edt explained).
So you will end up using a kite on the very upper limit, and very dangerous, with the short lines.
And with longer lines (say in 10 knots on a TT) you will actually be underpowered so you have to work the kite all the time.
Using extreme long lines is generally no good because of the handling when you have to do jibes/turns/waves/tricks on a hydrofoil (or ANY board actually), but can of course be the only solution in rare and extreme wind gradients, agree.
You still have the hazzle changing lines, when the wind changes.
And IF your kite get a defect, you are out of the game because you only have one single kite
So having (at least) two kites instead, will really be better and safer in every single way IMO.
The idea of a minimum quiver is appealing, but also deceiving