-GrimRacer/ABC 42x55 prop
-SV27 specific adjustable trim tabs from www.offshoreelectrics.com
-Port side turn fin
-6 oz of lead taped in under the motor.
I'd contact Steven at Offshoreelectrics and see what he has for sport level batteries and chargers.
I run Elite 5350 LiPos and you'll get the best performance with LiPo cells. Since the esc doesn't have a LiPo compatable low volage cut off, you need to monitor power consumption and either time your runs or install a stand alone low voltage cutoff to safely run LiPos.