Trying to pick a trolling plate from Cabelas for my 2003 40 hp Merc outboard. I don't want to drill holes in my shiny almost new Merc. Which trolling plates simply bolt on? Which operate well? Which do not get destroyed when the operator screws up (I'll be buying a box a shear pins). My 16' Starcraft deep V idles at no less than 2.5 mph which is a bit fast in the spring. The 3 cyl runs smooth as silk, just too fast. Any info appreciated! Say Shortdrift, you offered one to me last year if I recall. If you got one to sell now, let me know. I'm in nearby Fairlawn.