Thanks SVK . I am ignorant to Stihl's numbering system. Thanks for the explanation. I'll try to remember.Yes those are mid sized homeowner grade saws. The second digit of a MS model tells you if it’s homeowner or pro. If it’s an even number it’s a pro saw. Odd number is homeowner. 241, 261, 461, 661, etc are pro saws. 211, 271, 291, etc are homeowner.