How many of you have tried VP Motorsport 109 or other VP fuels on outboards?

From the manufacturer website about Motorsport 109:

Recommended for applications with CRs up to 15:1. In engines that can run on pump gas, MS109 is a direct replacement that produces up to 5% more horsepower than premium unleaded. In fact, MS109 makes more power than any other unleaded fuel on the market with the exception of VP’s MR-PRO4.1, which is used by most top teams in AMA Supercross and Outdoor Nationals. Compared to other unleaded fuels, MS109 offers better detonation protection as well.

I am hesitant to run much more of this as I'm afraid of damaging the motor but the tech states it actually runs cooler than pump gas on slightly modified motors such as my 30 3 cylinder yammer hammer.