hi john.
got the gato wet (paddling pool) a couple of leaks to sort nothing major,but the bow plane still playing up,so out with the piston tank and the drive unit.
say out of 6 operations it would jam once.
have found the shaft which the worm is on that carries the plate for the micro switches the rear switch the end of travel of the shaft the shaft goes to far and hits the plastic end plate and will not set of on the return stroke,stripped it all down and re-adjusted the collar with the grub screw in,there is a flat on the bar or shaft this looks like its done the trick,just tried 20 ops and no jams a bit of fine tuning a bit annoying when the beggars in the boat. builders beware.
alan b