ufc 5 submission system

How many of y'all think the submission system in UFC 5 is inferior to how it was in 3 and 4? I have been trying to get used to it and have only been successful one time. I was never that good at submissions in 3 or 4 but in 5 it just seems a lot harder than it needs to be. Again I just might be really bad at submissions. Any thoughts?