arloj said...
an old rule of thumb if you dont have a gauge, do the old flick halfway between the centre of the LE and wing-tip, if you get a sort of metallic twang your good to go.
I find the "ping" test to be quite arbitrary. It's quite hard to distinguish the difference between 5-6-7-8-9 PSI with the ping test as it'll sound roughly the same.
The most reliable test and applicable to any kites is the folding test. Try to fold your leading edge and if it's easy to fold = not enough pressure. If it's hard to bend, meaning have to use strong force to be able to bend it in half = good to go. You will also know that you're getting close because you start to feel resistance in your pump.
A lot people under pressure their kites and they all seem to be using "the old ping test"