From experience, I shot an MQ-1 that had a soft wall. When I got to what was considered full draw, I could still pull back with a little creep. My LX has a hard wall, where when I get to full draw, there is no extra creep.

Yes, it would depend on the model of the bow. Seems, though that most older bows had a definite hard wall, and you should be able to tell where it is.

Just my $.02 worth.