With the comfort factor taken in, I'm assuming that the DF will produce more chopped wood per session than the Fatty just because of fatigue and blisters caused by the Blister Maker's micarta grips <img src="/ubbthreads/images/graemlins/laugh.gif" alt="" />

I did some serious DF chopping last weekend, and my whole hand felt like it'd been smashed w/ a sledge hammer, but I was blister free (had some hot spots though).

The Fatty didn't look that much thicker than the DF in your pix - its about .02" thicker, right? Pretty negligable? Or am I way off?