Well, despite being torn on what to do about the bow, I decided to go out to the garage and throw a few arrows through the chronograph. I mean the real issue with set in a bow is loss in performance, so I was curious. Keep in mind that this bow is around 72# at 29" and is quite snakey. I first used a 505gr arrow 3 times and got an average of 188fps. Not bad...but i've done better. I also had a 610gr arrow so I shot that through the chrono and I got an average of about 180fps. This packed more punch at the target and was a lot quieter, albeit being slower. This bow is more efficient with a 600gr arrow, surprisingly. I also shot a heavier 670gr arrow, and I got 173fps. That is a lot less efficient than the 610gr arrow out of this bow.
I was not sure whether to heat temper the belly of this bow before, and to be honest with you, i'm still not sure. It's got a lot of snakey character to it and it has 2.25" of set, but it is so smooth...just a joy to shoot. I'm not sure how many fps I would gain if I heat treated the belly...do you?