yep, it's true, but matt hughes is 5'9 i believe and dominated the ufc welterweight division for a while, and gsp is 5'10 and also dominating, it can be done as you said, i dont mind going toe to toe with bigger guys in boxing or thai boxing, but with mma you have these tiny 4oz gloves, it's very easy to get taken out, i'm working a lot on my wrestling and bjj which was something of a weakness for me