After reading all this and thinking about the problems I have with my older enforcer boat glitching and cutting out even with a stutter stopper from novak installed and a good 5 cell battery and a fail safe that kicks in and out all the time when the boat is way out there I have come to a conclusion.
The waves from the water is what may be messing with these boats and the pick up for the coil may also be the problem.
I am running a JR radio synthesized and all the equiptment mentioned above to try and stop glitching.
I also am running Hitec servo's and I have often thought that they are not that great but over the years I have run all kinds of different servo's and I have never had too many problems with Hitec's.
I would say try a Fasst system from Futaba and see what happens.
I am going to try this in the spring cause I am tired of the fail safe going on and off all the time.
just my 2 cents