the AREOPLATE does works, I have seen a servo and a small trian run in a fish tank for 3 days( same servo? ) at the NY WRAM show, and I use it as a insurance.
if it works, one may build a 100% all wet hull, been there, done that, came home with only the transmitter.
* note, not with the AREOPLATE, is something call THE STUPH, I didn't have $$$ to try it again. *
there for I try to over kill everything.