We are very happy with our choice. Yes, we pulled the aluminum angle, resealed and replaced it. We have hit 52 mph with engines trimmed up 75%. I normally run with a trim at 50% or slightly higher. Typically at cruise, depending on water conditions, we will get 1.6 to 1.7 mpg. I think at wide open, it was just around 1 mpg, maybe just a bit less. Overall they are better on fuel than our old Yammie 250's with faster cruise speeds.