My very first one hand opening knife was a very early Delica with the integrated clip. I used and loved that knife for years. Decades later I'm gravitating back to a Delica that I drop into my front pocket. Right now my basic VG10 with custom scale version is kicking my CRK small Insingo out of my pocket. Now I'm looking for the next level of Delica with the best available steel. There is the zdp-189, HAP40, Super Blue, or the upcoming next steel release. Really what is the best upgrade from the basic VG10 makes sense to pursue to build out with custom scales?