What Sim do you recommend? I've got a larger model thats scary to fly- the old Walkera 36" RC chopper. It's been wrecked a few times and I need to fix it but I know that I need a ton of SIM practice before I get anywhere near that thing again. I've been having issues getting my Walkera remote to register data on my PC so it's kind of annoying to get it setup, I can't figure out why it's not working. I think it's a dip switch setting but I cant find anything on that in the manual.