I agree. I've got both knives and the Sog mini Pentagon handle is much better. I also think that the Pentagon blade is superior. The Sting is aesthetically pleasing but not good for much and I regret buying it.It is a little slick. If you want it for nostalgia reasons I would say get it because it’s cheap. But for small daggers the mini Sog pentagon is much more “ practical” as a “user”.
I own one, the CRKT 2020 is a piece of junk. Tiny sharpened edge (it's actually only sharpened from the tip to the R in CRKT in your link), slippery finish, overly heavy, horrifying sheath system. For a much better user version track down the discontinued CRKT 2025 Sting 3b model. Or pony up and get the real version from AG Russell.
I also have the larger Pentagon and it's one of my favorite daggers. It looks elegant and deadly and I like the one side serrated and one side plain feature. Apparently Sog is bringing out new blacked out versions of both Pentagon models but with both sides plain.And how about the bigger Pentagon?