Trim tabs on the Comp Radios are as easy to knock out of trim, as thier Analog brothers, but they only move one or two clicks and the display shows how much they have moved..so its pretty easy to correct.

I learned on buddy box with my 9C as the slave. It worked out fine. Oklahoma winds tried to down me a few times, but like Ken said, you learn to fly in the wind, if your in OK. I actually have started refining my mixes for normal(10-20MPH winds) or adverse(21+MPH winds). I call it my "Calm/Windy" switch. I have used it one time, and actually realized I didnt really need it, because I was already subconsiously compensating for it,,,,,,So there ya have it, Bells, whistles, switches,, but just learn those two tall sticks and the rest is there when you move upward in the hobby/addiction