Well I have 6 flights on the new Mini Force, flies just like the old one, GREAT! Holds a line like its on a rail, powers through loops witha 6x3 APC (although I prefer a 6 x3.5 Master Airscrew that I dug up somewhere), and glides FOREVER after the motor kicks out. Regardless of where I am on the circle, I can whip it enough to bring it in for a perfect landing at the starting spot on my "runway".
Not sure, but may need to add a little more tipweight, got a nickel in the soda top weightbox (thanks again Minnesota Modeller), may add a dime. Right now it seems to fly level, but my planes seem to last longer if my outside wing is dropping just a hair. Keeps them from rolling on me in outside manuevers.