Join them from side B. The fact that you just sewed from B doesn't matter since you didn't just join the seams next to the one you are doing next. (it's the fabric that cares about direction, not the machine)
I leave thread tails on the start of each row so I know which direction it started. Helps me out sometimes, especially if I take a break.
Last edited by ghostrider; 02-26-2012 at 11:08 AM.