I have been carrying an older model Delica (8A blade and integral plastic pocket clip) with SpyderEdge blade for almost 2 years now. I work in EMS and this knife has yet to fail me on or off the job. The knife is carried daily and used in an utilitarian role. I now feel it is time, however, to replace the knife ( with another Spyderco, of course). Any suggestions would be greatly appreciated.