HI , I have a older sport 20 310 from ML . nice boat . I have a 120 amp esc, with 2 2cells 5000mah batts , powering a NEU 2200kv Motor.
for the strut setting , place the boat on a flat table raise the rear of the boat till the bottom is level, and start with that. also I had to 4 oz of lead
to the nose. Also I Launch the boat like it was a nitro boat to get it up on plan fast, Make sure you run Caps on your ESC to help with start ups.
The rudder , just buy a SM 20 size,,,,
in 2014 at the minute breaker classic , in Mendota, il , I placed 2 nd . my 1st year of rc boat racing
Thanks to good friendly people in this hobby . Darryl