I have one...for what it is worth, I would not part with it. Upgrade is an interesting word, but if you just HAVE to get something new then I might suggest a Deregulator. Another astonishingly good knife is the CS trailmaster in San Mai, a bit tough on the wallet though. Fehrman is a great choice also as well as Busse but the BMF with a proper edge is one sweet blade in my book. You might get a kick out of getting a Basic 9 which, although hard to find, is one of my all-time fav. blades. I look for balance, comfort and the right heft in the mit. Have fun with your search, mind the addiction though...it is a VERY slick slope.