Agree, long term success isn't at all guaranteed. But the servos are cheeeeap and I can replace fairly easily. But if I burn through them too quickly I'll decouple the servo from the powerhead and use the servo to turn the powerhead through a linkage or some sort of belt setup. I'd just have to mount the powerhead to some bearings.Awesome! I'll be interested to hear your long term success with it. The downfall of the seasweeps and similar devices all seem to be the off-axis loading on the drive mechanism from the pumps.