Hi, My first post so a general hello and thanks for a very informative and helpful board. Can anybody help with a very small but annoying issue, my phantom 1 with (NAZA 4.2 installed) always wants to drift backwards on take off, (this happens in all modes). I can correct with a bit of movement on the right stick, but I really want it to just go straight up ! I'm new to flying so not experienced at all, some of the terms confuse me to be honest ! Anyway i thought the NAZA assistant would help, I thought there must be a way of trimming the motors for even power distribution, because surely straight up just needs even power to all rotors ? Any ideas ? Thanks in advance for your replies.