Got one great gift from the guys!! Enjoy this maiden and chase flight footage. I'm using two Spektrum 6s 5000mah 100c packs with one in the mid tray and the other in the back tray. I have also got a 2s 1000mah battery to run my afterburners. I position it in the front battery tray to get my CG correct for my taste. the after burners are from the RC Geek.