Hey xK. I can't give you much on the SY and SR because I don't own them...but I would like to have a HR eventually. I do own a Bravo-1 custom with ghost green G-10 handles (black liners) and it is a very nice knife. Because it is a custom and less than 10 like it were made...I don't use it. So I need a 4" user or two..I'm thinking of getting the following:

SR Howling Rat and a RAT Cutlery RC-4.

those should be great for any need I have for a 4" knife.

Others will have more to add/suggest./ Good luck! <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />