One of our club members used the X-power with the Ammo 2300 in his 33 inch mono hull with 4S lipo batteries and a 42 mm prop and promptly burned up the ESC. What he did wrong was the 42mm prop was to much for the combo. He should have used a 40mm or even a smaller prop to start testing.

If you plan on using NIMH batteries the X-power is a great unit. Yes, it can handle 14 cells. If you switch to Lipo then by all means watch your prop size and check the temps after a few very short runs. If you notice the boat starting to slow down long before you should have run the batteries down, you are overheating big time STOP.

By all means buy the programmer as it makes life so much simpler.

I agree that the X-Power is a good unit for the money but be careful and start out with a mild setup when going with Lipo batteries