Need a little advice. I am moving closer to splashing my 1996 215 Dual Console. I am mounting a 2006 225 Yamaha 4-stroke on the transom. 2 decisions that I need to make: 1) Manual Jack Plate with 8-10" set-back or go straight on transom, and 2) Prop - 3 blade, 4 blade? Pitch? Any experience with either very appreciated.