Come on ST, the coils and carbs are the major players in a AT system. It took Husky over 2 years and a recall of saws back to Sweden to solve most of their AT problems, yes design/engineering problems , not user error issues, to correct most of the faults. I don't drink the Stihl or Husky kool aid, could care less, I own and run them both. The MS661 looks to be a nice saw, time will tell.
The AT wasn't the problem it was crankcase bolts and air leaks if I remember right.