I want twins for this 54" Dumas Scarab but hate to spend much for a sport boat. Does anyone have any experience with these, or would you be hesitant to use them? They look good and seem similar in design to GoolRC and others I have heard good reports about. Cooling jackets look nice and the price is excellent $92 each for two:

https://www.ebay.com/itm/SURPASS-HOB...1nu2:rk:1:pf:0