height adjustable camber plate questions?

[Johny5]

i've never heard of anyone having these on here so i figured i'd ask. i just picked up some project mu front camber plates for s14 and am putting them on with agx/sportlines (yes they have the spacers). it has a coilover style heigh adjustment with the same collar to lock the piece that holds the top of the shock thats threaded into the adjustment plate. how much should i screw that up (i.e. lower the car, help my shock stroke) before its unsafe. i know 5 threads is probably unsafe for the type of driving this thing sees at the track. should i do, what, like 10 or so threads? any help is help, and pics coming up tonight. thanks!