Just installed a dbs-mod antenna and reached 26127ft at 380ft altitude with 67% battery life. Yup,,, 26k. I pressed the come home button because i was really afraid because the p2 i was flying was actually my friends drone.. My target range was 30000ft since 20000t was so easy already with the 3 batteries on board. Upgraded the props to compensate the heavy load. The wind was also starting to breeze a bit that also triggered me to abort the target range. Im planning on putting my mods on a $150 chinese copy ar drone 2.0 and i ll update u guys if its a success.