It's a split for me. the mg-66 is way beyond my driving capabilities. Learning how to control the power curve was hard for me. Mostly I did it through clutch set-up and gearing.The rb modded 3 port has more poop then the standard 3 port,yet not the insane power of the 5 port or the mg-66 which again is more then a 5 port in my opinion. I know the mg-66 is a lot more controllable then my 5 port. The 5 port to me is like a light switch on/off. the mg is strong,yet smooooth all through the power band. You guy's need to remember I am mostly a newbee. I have 5-6 years under my belt with one year racing. So even tho I was lucky enough to get a partial sponsor ship from answer rc usa, that had more to do with my personality then any thing else. I call it like I see it,I do not lie,drink,smoke do drugs. I quit all of that. Missing out on to much life. Also I pretty much make friends where ever I go, and if not that's fine too. So with all that said, I normally always drive the mg-66,but for tight tracks or club racing I like to pull out the 3 port. I also use the mg-66 as a sales tool. Or at-least try to. I have it so any one can try it either in my car,my back up car or their own car. So hope fully mike is seeing some sales from me. It's still early in the season, but we are starting to get things going.