I have a stratos that I just had a mainer 150 put on. It has a slidemaster manual jackplate (first jackplate I have dealt with). I put it in the water last week and it will not come up on plane, just points the bow straight up. After running and playing with the trim it will finally come up. When I stopped I noticed that several inchs of the cowl is under water. Can anybody give me advice on how much I should raise it (I'm assuming it needs to come up) or what I need to do to get it to come up on plane?