If you run lameboi/frootloop rb/ch/pal, you don't do terrible damage even in S&B. You can switch to 2H as needed, for example to hit with burst and sweeping strikes.
All I'm saying is running around in 2H is not a good idea when you can switch to 2H for dishing out damage as needed. Run in with S&B, switch to 2H, kill stuff, switch back to S&B. Rinse, repeat.
It's a VERY bad idea to run only 2H at below R6. You will just explode. If you want to use 2H just switch to it after you're in range.
I'm fully geared R8 and I don't run in with 2H, even with pocket heals.
P.S. I think being able to switch between S&B and 2H is one of the strongest aspects of warriors in pvp remaining to us. It's a real advantage in a class which has few. Learn to use it and love it.