My point is that the softening makes it easier for _all_ enemies to hit the victim, not just the aurotyugh. Therefore, if softening were to reduce the equivalent of DR, it should have made lycanthropes more vulnerable to normal weapons even for a 1st level weakling with a quarterstaff or whatever.
I don't think you want to get rid of DR softening. My point is that we already gave the softening a boost by having it affect DR. So if you want to have it affect enhancement bonuses, as in the original monster, we need to strip out the extra stuff, like softening of DR. Kapische?