I'm in a similar boat.
I used to play with Mfil and Aero 200's at over 12 oz strungweights.
Now I"m playing with 10 oz 500's, and play has never been better....but.
Hitting is and has always been stronger with the 200's. Hitting is not playing, as the other guy is hitting back, instead of hitting away from me.
Haven't settled on the 11 oz Microgels yet.