I have a few sog knives. The tigershark may seem to be a big, bulky, heavy knife to some people but that is what it is sold as. It isn't designed to be used as a pocket knife.
My tigershark (one of the newer models) is definately my favorite knife to use in many situations. Edge retention is great, grip is wayu solid and most importantly to me, the knife has a kinesthetic sense about it where the weight allows you to estimate where the blade is once you get familiar with the feel.
My only complaint about this piece is the scabbard. My complaints are minor (the drain hole should be bigger, the attachment clip could potentially wear) and dont effect my affinity for this blade.
I also have the 'kid brother', the pup, and let me tell ya this knife is probably one of the more versatile small blades ive ever had. I used to swear by my benchmade river rescue for my first choice on a quick release emergency fixed blade but the pup has replaced that knife. its functionality is better, the grip is perfect, and the blade is a little more multifunctional.
I havent really seen the 2000 but if it is like the other two, im sure its a work of art in both form and function.