I have not tried the throttle reset trick yet. When I have a minute this weekend, I will try it. Can't hurt.
I will also read the MB forum when I have a chance.
This car also sputters a bit when you first take off in it, but when it warms up that goes away. Just seems like it is cold blooded. But the cut-out or hesitation between 1,000 - 2,500 RPM's does not go away after warmed up.
Thanks for your help so far.