Before I spend a bundle on a Mercruiser HI FIVE prop as recommended by them. Pass some judgement. 2002 Chap 186 SSI 5.0L 2 bbl carb 220 hp, me alone in it. Trim must be full under, tucked in, to slowly power up on plane. Prop blows out instantly if I goose it to 3000 quickly. Start triming out...