I used the FMS sim with an interface with my TX and it helped a lot. I practiced on the sim while I was waiting for my LMH to arrive and got pretty good with the heli's, even doing some 3D stuff. That sim is not as realistic as Realflight but it gets the idea across. I had never flown a heli before an I was able to take the training gear off after the 2nd tank on my first day out. After about 5 tanks I was able to hover with the heli pointed any direction. I have flown planes for a few years and that may have helped, but the sim really made it an easy transition.