I see what you were saying. In my experience if someone has done a move on you and has it tight then it is very hard to get out of. However, before the hold i

I see what you were saying. In my experience if someone has done a move on you and has it tight then it is very hard to get out of. However, before the hold is tight then muscling out of it is very much a huge concern for a lighter, weaker fighter. A smaller person usually is quicker and more scrappy. Speed is an asset but there is a reason there are weight classes. Larger opponents are much harder to defeat if both people are in equally good shape and have around the same skill set.