Charlie, I am always looking for an excuse to upgrade as well and go down to Lancaster Archery several times a year to shoot everything. My last trip there was about a month ago and I shot a ton of stuff including the Reezon and the Monster. At the end of the day, while the bows were fast I could not justify moving away from my Switchback XT, which I have been shooting for at least 3-4 years now. I simply have not found anything out there that provides a better combination of smoothness, quietness, speed and overall shootability. A year or so ago I bought a new Vulcan that I torqued down to 83lbs. This was expected to push the SB to backup status. The Vulc is an amazing tackdriver and fast as hell but somewhere along the line it has made its way to being one of the backups.
I cant remember what youre shooting but if it is a SB, in my opinion its going to be tough for you to justify "upgrading"