Good video

I have the same alarm reader for the battery those voltage checkers when you give it full throttle it does drop below the set voltage even if you put it at 3.2

Get yourself a 1644 from doctor prop. I put it on my Sonic Wake and got 64mph. Much better with cavitation and kept temps within range too.

Hey I use the 42x1.4 3 bladed prop. the high rake props create a bit of cavitation, those are for high speed runs. i put on the sonicwake turn fins. seems to perform well. out the hole with the 42x1.4 gives good speeds and ok temps. i also keep the volts at cutoff at 3.7 which i set on my radio which gives me telemetry. keeping the voltage cutoff at 3.7 will save the battery. Btw the leaking issues might be the cooler on the motor. the clamp on the cooler might be a bit too tight, i loosen the strap and got rid of the leak that i had. keep an eye on the stuffing tube, i had mine spin and broke a shaft, so i replaced it and epoxy the tube. just recently got another impulse and is going to epoxy the stuffing tube to avoid the issues with broken shaft. Replaced the servos with Power HD LW 20mg works quite well. stock will eventually be a problem. kzfaq.info/get/bejne/itucjcWEsLeXmnk.html

I tried to voltage alarms they don’t work right

Boats will spin out if the cg is too far back. Try moving batteries forward.