Gbbr's make you epic super DEVGRU special forces. So you just become a better shot than those that have mere AEGs.
Actually the hop plays a huge role and when you have 30 rounds per mag you pick your shots and having the heavier bb's helps was well.
“We sleep safe in our beds because rough men stand ready in the night to visit violence on those who would do us harm.”
To those Rough men... Thank You.