I got the MM conversion installed last night and I must say I am really scratching my head on this. After the conversion, the F/R weight distribution (using the identical method i have been using) went all the way to 42.5% / 57.5%. This is with a 210g shorty lipo. I put in a 150g lcg lipo and this changed things slightly to 42% / 58%. This is a full 5% shift forward from the configuration I had been testing with the super shorty lipo and the ESC in the back.
Now the proof is in the pudding of course. I am going to track test it tonight and will share my results.