hello keithybu
First up Hay is horse food, but ill forgive you as ur from Vic
Agree, front lines too long or back lines too short (same result/outcome)
Agree all lines should be same length, when fully powered up but a mix of bridles, attachment points, pig tails etc can change.
Now this is what I do (putting on flame suit now as i type) after checking all line lengths / bar and then check your QR is working.
On a non cranking wind day but plenty of wind to keep kite in the sky.
Set up kite in a big open space on the beach (or the moon)
Fly kite at 12 o’clock (note, flying kite at 12 o’clock this can be done at any time of the day)
Carefully / slowly power up the kite, if it starts to back stall, land kite and lengthen back lines about 5cm and repeat.
Once the kite doesn’t back stall when fully powered get a mate to equally pull down on back lines about 5cm while you are holding bar fully powered, this is in effect adding more power to the kite. (Back tips of kite will be closer to bar / therefore more likely to stall)
The trick here is to find the point where the kite is stalling and set lines with about 5 cm longer than that.
I have set up my kite and friends kites like this and it works for me, Im heavy on the bar and often hold full power to gain balance, i know the kite wont stall.
IMO if a kite is stalling backing it is over powered in all aspects of it flying, therefore you may not be getting the correct de power or you may have to use excessive depower.
My 2 cents worth :) PS, I have set up my brand new kites (new out of the box) that didn’t back stall. I shortened the back pigtails about 15 cm then tested theory, so I reset them at 10 cm. (on cranking days I go back to standard lengths)