Hi, I've searched forums, watched vids on youtube, downloaded DJI instruction manuals etc etc. And I know there has been problems and the fittings instructions seem to change over time. So here's my question/s, I'm changing my H3-2D for a H3-3D on a newer P2, how easy is it? and are any tips or tricks? Thanks for any help, cheers Mark Ps. sorry for posting on 2 forums, but more brains the better, thx again.