My main prop that I use is a Turning point 4 blade 19" . When I punch it out of the hole it hits 3000 rpm and climbs. Will top out at 4900 rpm and 47mph on gps. Today I tried a Volvo 3 blade 21" out of the hole it hit 3400 rpm and climbed 4900 rpm easy same speed as the 19". The Volvo props hole...