I just got a brother 1034D and really like it. When I first used it I had all poly thread in it and my tensions the same and got a completely balanced stiched. This weekend I got some wooly nylon thread and put it in the upper and lower loopers and nw my stich looks really different, smaller and the first two threads seem to play a bigger stiching roll. I assume that my stich needs to be rebalanced, but do I need more tension or less on the loopers or should I change the tension on the first two needles. I'd appreciate any help.