I reset the tranny programing and it seems to be a little better. Doesn't shudder as much or as bad as before. Maybe a programing issue, especially since some have had thier tranny replaced or rebuilt and the issue returned immediatley. I've always noticed if you give it more gas or let off the gas a little it stops immediatly, just as driving in sport/manual mode it doesn't do it at all. But still do not know what it it causing it..