Ok, so my good old Stihl 036 Pro had an electrical issue...now remedied. However, I convinced wife to let me get a new saw, so I bought a Jonsered 2172 today. Any thoughts on 7 tooth or 8 tooth sprockets? And before you move this BeGreen, I'm looking to get a more refined user group input. Some of those "saw" threads appear to have more experts than saws made...