One problem with the side balancing is that people play with squads, and switching sides will have you locked for what, 6 hours? Sometimes I'll switch sides to try to get to know the other players or just for a change of pace, but I'm met with "Hey guys, dont say anything, a Knight is with us right now", or we failed to capture this base because Gloom is on our team right now, he must be a spy. People don't believe that others have integrity to just play the game without giving up information, why switch teams if you are going to be met with distrust and left to die by people you normally shoot down.
I'd be happy with a 2 hour cooldown on side switching. I'm in Europe at the moment so often when I get on, none of my squad mates are on. I could use that time to even the sides, then when my friends are online I can switch back. But currently if I switch sides to help even the teams, I'm stuck on that side for the whole night.