I could be off my rocker, however, I do feel a better sense of accuracy with regard to palm muting.
I presume others will chime in on this subject.
EDIT: Yeah...I seem to have a better PM sense with this, however, I'm really uncertain about my decisions, 'cause the only thing I've done is update via L6 Monkey with my POD HD500 connected and JTV connected to it. I have not accessed the WBHD software, yet, 'cause my battery has no charge - I'm always plugged into the HD500 with it. Am I losing my mind...anyone...??? OK...with regard to the PM question only. I already know about my mind with regard to other subjects. :-)