From what it looks like watching early rounds against Gambit, it looks as if SMB players are just out-duelling Gambit players, winning almost every 1v1. Are they really just better aim or they really a good team?
yes it gives you a disadvantage when holding something, that's why you repeatedly peek things while holding and you balance it out.
I have played on turkish servers to give you a taste of your own medicine and it become ridiculously easy to win duels.
That or people on your servers are just really bad.