Their all "stock"......rarely used.....I help my coworkers in season, Fall/Buck their heat for the winter....Propane was high and unavailable 3 yrs ago....I snagged off my property and did what I could...............It's good practice, enjoy it.......
"I study the "BC Faller Training" videos and Respected YouTube guys often...and practice respectively. "For better or worse" I don't know....?
Any feedback would be appreciated........... "I run the 390xp anymore"... 372 with torque