I just received my P2Z - I don't know which Assistant software to load on my laptop. the DJI site offers both 2.0 and 3.0 - which do you guys recommend? ( are there still issues with running 3.0?) Also - remind me why you need to also download the RC Assistant software......doesn't the main assistant software interact with the Transmitter? Thanks in advance for your help! I am really confused on this issue.