On my 2008 Champion 210 with a 250 Proxs and a light load I’m getting 66mph with a 26p fury. Seems like most are getting higher top end with a 25p whether it be a fury or tempest. Thinking about getting a 25p Fury 4 blade. Any down sides to the 4 blade vs the 3 blade? Suggestions on best price vendor to purchase from?