Hello i have some UFC questions?

I'd say being taller is less important than having a longer reach, having a strong and stockier made body, or being quicker on your feet and your reflexes, but maybe a bit more important I think than weight itself when it comes to your standing game. And as for examples of how unimportant it really is; Matt Serra is short for his weight cl but still beat GSP, Fedor regularily faces bigger guys, and Sherk has also fought in a weight cl where he was considered short (WW) and beat most of his comp. I'm 5'6.5 and at my lightest weight I'd be around 145-155, does that make me too short for the WW division, I'd like to think not really, but I'd bet I'd have a much tougher bout (regardless of their record) standing against a Muay Thai expert in the MW division if he was at 6 ft or taller and had leg and arm reach that greatly surpes my own.