Don't worry about driving with the EZ locker in the front.

When you are on the street and the hubs are unlocked, it makes no difference.

If you are on the trail and it won't turn tight enough for a certain obsticle (starts pushing) just get out and un-lock the hub on the wheel towards the inside of the turn.

When it's locked in the front in conjunction with a rear locker you will have a good combination.