G3 X22 DLX - Yamaha 115 - Speed?

[rancherlee]

[quote="mikeb33"]Why would stainless perform better, if it were the same diameter and pitch as an aluminum prop?[/quote]

Stainless props can hold the water better due to better cupping and thinner blades allowed by the material. Sometimes that extra bite can make enough of a difference in "traction" that the stainless will avoid blowing out where a similar aluminum would blow out. Other times a stainless would barely make any difference. My setup does not like 3 blade aluminum props but 3 blade stainless/4 blade aluminum work very well. One thing to watch for on 4 cylinder 4 strokes is heavy stainless props like to "chatter" at trolling/no wake speed