i put a. 4082 1250kv lepord with a seeking 180esc. in my vanquish boat i want the boat to do low 50s to mid on 6s right now i have on a x645 prop. and getting 43 to 44 mph do guys think a 50mm prop like prather 235 oe 240 prop will be to much i know i can spin a way biggeer prop but how big?