I have put a few hours on my new to me Zodiac which is a MKII HD.
It was all going good until we hit this problem.
Then it started doing something I have never felt before. Of course it is the first time I have driven it fully loaded on glassy water. When running full throttle at 23.4 mph or so, what it does is arch it's back so to speak, then unloads picking the transom up out of the water a little. This causes the motor to cavitate for a second. Then it starts the process all over again and releases about 20 seconds or so later. If I slow down to around 19 mph or thereabouts it does not do this. We tried moving people around both forwards and backwards with no results. It seems like it is an air pocket forming or something. Not really an issue since the Pacific Ocean is never dead flat, and diving a lake is something we will not be doing anytime soon.
Anyone else experienced this?