I have same boat and engine-95 model,i bought this boat 2 months ago and it has an a40 23p tempest(no plugs)and mine does the same thing,bow drops at slow speeds and in turns unless im running 5000 rpms and up.I think the only way to stop this is to have someone like Rich Boger tune the props to our boats,from the posts i have read on bass fishing home page(props)his prop tuning gives all around better performance and lift at slower speeds,im thinking of sending him mine!Brian.