TFL CAUDWELL F1-H2o

[Maxnitrox]

hi to everyone; i have a Caudwell F1 H2o, and after i replaced the Esc (to use 4, and 5S Lipo) Now i can't get the steering to respond at high speed, anytime i want to turn i have to reduce to less than half throttle. is there anything that i can do to fix this? other than going back to 3S.,

[Peter A]

Try a stronger servo.