Quick update...since I have learned quite a bit for the forum.
I strapped on the 2011 Cartels and quickly remembered why I was so excited about trying to find a rear entry binding. While my heelside turns felt super responsive I just never felt comfortable while on my TRS. It was the same last year while still riding my 1999 Santa Cruz (I know, super old board). I rode them for a couple of days and then decided to try the GNU Mutants one more time...however this time I was going to try and get them setup correct with a local board shop. I did this yesterday and WOW, I fell in love with them. There are some things I don't like (they aren't that much faster for one), but my confidence while riding shot through the roof and I just felt like they were right for me.