I have the verticle bobbin on my Brothers1500 and a horizontal bobbin on my singer and have seen no difference on FMQ. Maybe there is something on you needle or table service that is catching the quilt top ad causinig the eyelashing. Also eyelashing it caused by moving the top too fast around corners and also tension issues. I like my top loading bobbin better since it is easier to change bobbin thread. Also I was taught that small eyelashing is OK since it will usually correct itself when the quiilt is washed.
As for FMQ without foot. I have done it both ways when doing outline quilting and have found that using a FM foot is easier since you can move the top in ANY direction rather than having to stop and then turning actuall turn the quilt top.