X6 Wing Gurney

[Pownabown]

Hey there
Looking to see what people ideas are with regards to how much gurney you should run.
Basically i cut mine off my wing all together which was when i was running indoor racing with some big air jumps and seemed perfect but now im
back on the damp astroturf i seem to be struggling to find rear end grip.

Do you think buying another wing with full gurney will help me get that rear end tracktion or will it not make alot of difference?