In my process of shopping for a new prop for my 2001 Tohatsu 15D2 I found the only one available from iBoats is a 4 blade unit with slightly less pitch (which I understand).<br /><br />The stock is a 9.2 X 8.8 three blade and the iBoats unit is 9.25 X 8.4 four blade. <br /><br />My question is ... will I see any appreciable performance difference by using the 4 bladed versus the 3 blade prop?
