I got to run Marks two 125's and the 797 in a test to see which one was most impressive to a "disinterested party". Although they were all great saws the one with the adjustable carb was a real horse. It had power to burn. The stock one was pretty awesome also, and the 797 was the slowest, but it had a skip chain on it. After that Grandpa Tractor really ruined me for life when he let me run his Dolmar 7900 and the Dolmar big bore. As many of you know I have a 6401 that I bought with thoughts of going bigger, but it runs so well I have put that off. JD showed me the error in my thinking. Now to be fair, part of the reason that these two are almost frightening in their cutting power is that JD is a fearful good chain sharpener, to the point that you better be hanging on to the saw when it hits the wood cause it just grabs hold and digs. Of the two saws the 7900 was the most impressive, but the only thing stock on that thing is the kill switch, what a beast. We really had a great time thanks to Mike, Ron, and Mark, and all the work that they did to get things ready. JR