Viper 13 7/8 x17 was the first prop. It got great hole shot and about 40.1 mph but overreved my motor at 6250.
Then tried 5 or 6 other props from a local used prop shop. Some were 3 some were 4 Blade. Was getting good hole shot but couldn't get over 40 mph range was 36 to 37.8
Got the Viper 13 7/8 x19 was good hole shot but top end still wasn't over 40mph around 37mph. It ran about the same as the others I tried but brought down RPM to 5800 or so.
Told PIB and Poontoon about the Raker 13.5 x 20 and they are running those. Better bow lift and topend.
I never tried the Raker because I put a jackplate on and was blowing out. So I went to 4 blade. no blowout
Running the rogue 4 blade 13 x 21.
Difference from the viper 19
1 inch in diameter
2" of pitch
Able to move 4" on jackplate. On jackplate
Runs fastest on 1" up 5700-5750 42.8 mph wot
Runs skinniest at 4" up tabbed down can run at 11mph still on plane