vmaniqui,
I think the only problem with FMQ'ing on the 201-2 is the horizontal bobbin.
The tension issue comes from the thread path. The top loading bobbin machines such as the 201, 66, 99 and others requires the thread to take a 90° turn, follow around the bobbin case, then take another 90° back up. For normal sewing this is not a problem, but I've read many times it does for FMQ'ing.
The end loading bobbin machines have a straighter thread path. Down, around the bobbin case, then back up. No turns. Supposedly this keeps the tension more consistent.
Also I've read that lifting up a big heavy quilt to lift slide the slide plate and change a top loading bobbin is more difficult than lifting up a big heavy quilt to slide the slide plate and change an end loading bobbin. Honestly though I can't see the difference.
Joe