Thanks! I do think the grip creeps back up sometimes since that's how it's been for 10ish years, but I am trying to have my pinky placement no more than an additional pinky width up from the bottom of the grip. The spin looks different on my better shots, but there's not enough of them to see it like night and day.
I'm def going to make mental notes to get more ptd going, I never knew I held the racquet so open at the bottom of my take back (like from the tsonga vid I posted before http://www.youtube.com/watch?v=_CrWFui1jW4
And even though Roddick had full ptd in that video, I still think his follow through looked a lot like mine. Maybe his is a hitting through motion but then his western grip gives him more spin (and margin of error) compared to my SW