I am going to say to small, example would be a v8 next to a motorcycle engine (you can have both with the same horsepower and the motorcycle engine will have alot more rpms but the v8 will be a better motor in the long run for sure). You do seam pretty set on the .21 if you like it then it is your choice to try it, more than 1 person has said they didn't think the .21 would be the best choice ( But the only persons opinion that matters is yours now). Hope it works out what ever you chose


Paul