Two questions.
Do you think the the apparent (I say that only because of the lack of top end RPM in current configuration and any number of things can help correct it) slight over proping of your current setup is also helping your low speed planing? I've seen it go both ways with that.
Do you think if you end up adjusting height for RPM that you'd lose some of the low speed planing. Again... seen it go both ways.
Outside of some really trick setups or setups with a lot of tab, there arent too many vessels I've run or seen that can both get on and hold a plane at 18 mph. It's quite impressive. I can do it on the 4winns but you need to constantly adjust throttle because it's the edge. That's also about 1/6th the boat you have.
I suppose a third question but this isn't really related to your vessel... do you think the factory OB model could be improved with a different prop selection? I've got to assume they're running the enertia on that. On my hull I needed about 4 extra (22 mph) to get on plane with the enertia. While I don't think in this case it would help, you can't help but wonder.