gtsports are valved to work with the kings coils and being a shorter body shock gives you more travel than the standard gt gas, and has a pretty nice ride as well, not to hard.
Just fitted on my ve sv6 Pedders springs sl and shocks on all wheels. The springs are approx 40mm drop but it didnt go that much down. Luckily the rear of the car didn't drop a lot and the rear guards weren't needed to be rolled due to the 20x10's at the back.