I recently put on shoe and ride plate kit from Hi-Tech on my berk "e" pump in my Sanger 20.5 Mini-cruiser.
The idea was to cure the nasty porpoise I have at mid range speeds. I still have the porpoise, and I now have some handling quirks when letting off the gas after a high speed run. As I let off the gas, the boat will get very squirrely and try to turn one way or the other.
Is this caused by the shoe? The shoe has no shims under it, and it is roughly even with the rest of the keel due to the recessed nature of the "e" pump installation.
Do any of you pump guru's have some thoughts on causes or solutions?