Jump ahead.......about half way to around minute 8...was running a bunch of my old 80cc plus saws. Mostly stock....one tweaked (you can hear the different pitch on that one) AND decided to put the "early 2015 built work saw" FT 660 in with all those OEM Bigger saws that had done time as work saws on the farm...my favorites...did timed cuts in their "As they are" configurations. NOT a true comparison as they all were with the B&C's they had on them vs. trying to swap a bar & chain combo through all those saws...didn't matter the results and how they cut pretty much speaks for itself....And I was wanting some of my old favorites to have the edge...but numbers don't lie. Now this last year with a lot more time, that FT 660 has proved reliable and those first signs have turned out to be true...its a beast for the money and time spent. Fact is if I did a scientific comparison..the results would be the same..