[cagrove]

Originally Posted by beradon

There's no way that my 190 will porpoise-It never did with or without the stab plate.

Then there is something else wrong...probably water in the hull. Before you cut up that plate I would advise you to address why the boat is not responding properly. Personally, I don't have a BMS plate, my Merc does a great job on my boat and I don't feel I would gain anything from it. I did have a boat that had a dolfin on it and it made a world of difference. Swapping props won't solve your problem if you have too much weight from water trapped in your boat. I guess what I'm trying to say is eventually you will have to address what's causing your boat to go plowing...but it's your boat and your plate. Let us know how you make out. Tight lines.