Hi JC

The small tank will be fine if you use the slider or use the mix that turns off the down elevator mix when the wheels are up. Do not however use one cylinder for both brakes and retracts, retracts are far more important than brakes! Slider would be first prize and then the down elevator mix second depending on type of aircraft, as stated previously some jets with lots of elevator could surprise you when giving full down while still travelling quite fast just after landing.

Good luck

Zane