I got the GT7 right when it came out. Have not had one problem with it. People say that they have melted it, glitching and all sorts of problems. I have not had one. I ran 3 back to back packs through my B4 with a 8x2 in it and the speed controller was hot but performed flawlessly. I also ran it in my TC3 all winter with no problems. Ran it back to back down at snowbirds running a pack in Stock Practice, Changed out to 19 turn and ran a pack and then chaged out to a 7x1 for the heck of it and ran it and had no problems...even though I left the setting to Stock Aggessive for the Mod.