Ehh, I'm a big fan of the early days, and in his time he did well with that ankle lock, I'll give him that. The reason he lost all those later fights though is because he never really got anything else while the game evolved past him, and all the other one trick ponies that used to be top dogs back then.
Yes,I agree, it did evolve past him. And, in my opinion, if Royce hadn't been in UFC 1, I think Shamrock would have won the whole darn thing. But you know how "ifs" are.
If you haven't read it, you should check out "Is This Legal?"
What a fun and insightful read.