I have a Towee Boats RiverMaster 16 (around 200 lbs.) with a Honda 15 on it. Frankly, it seems that I need "just a little bit more" to get the boat up on a nice plane. I see a lot of hydrofoils pictured on different boats & am wondering if they deliver definite performance improvements, or do you guys find (those that use them) that you have put them on and see not that much difference? I have looked at the Bass catalogue and they show a few that you can clamp on (I loath drilling holes in my gear) - are those worth anything> Any suggestions in this area, and "why" I see a lot of hydrofoils used, but manufacturers not putting them on in the basic design???