I maidened my Four Star 60 this am. AXI 4120-18, 14x7 APCe, Pheonix 60, 6s3p Irate 1800's. AUW about 8 lbs. The Irates are the old 10c cells. Draws 44 amps wot for 866 watts. Batteries were 98d on landing. Took off at about 3/4 throttle and flew around mostly 1/2 throttle. Certainly not unlimited vertical, but enough power for my flying style.