Well, if you already have a 49# Kanati, you won't ever NEED another bow! I still try some others too though. My latest is the NM Shelton in my signature. It is fun to play around with, and I'd recommend one if you want to try the Hill style bows.
If, perish the thought, I had to limit myself to one bow, it would be my Kanati, hands down. It is smooth, fast, quiet, and puts arrows exactly where I point it! Kanatis aren't especially picky about spine, and they sling heavy arrows with authority.
Congrats on your purchase of the finest hunting bow you will ever own.