Grew up in the 70's around Homelite saws and ran them through the 80's and into the 90's. About 2006 I got a Stihl 170 and it served the purpose of cutting camp wood for about 15 years. Couple years ago I had some backyard logging to do so I stepped up to a Stihl 251 and it's worked the best of any for the last couple years. This spring we moved a few miles to a house with a woodstove. Cut about six cord this summer with the 251 but it was being overworked at times. Yesterday I hauled home another six + cord of logs which included some 22" diameter logs. Looking at the four piles I dumped out of the dump trailer and then looking at the 251 it just didn't look like a good match. I called around and found a 500i with a 25" bar , figured I might as well go big. After trimming up a few logs as I decked them up all I can say is wow. I've never ran a pro grade saw before and didn't realize what I was missing, takes all the work out of it. Was planning on decking the logs until next spring but now I might be having too much fun throwing saw chips to wait. If your like me and have always used homeowner type saws do yourself a favor and take a pro series saw for a test drive, the difference is amazing.