UPDATE... sprayed WD-40 on the linkages and its smooth as silk now. What a difference.

May NOT have have needed a pedal after all... but oh well.
PLEASE read the last post I now have with the pics... it explains updates, etc.
Its been only happening occasionally, but on my 88' 300SEL when I first press the pedal, it kinda dont want to go down, then it will quickly go down. However, today it was doing that and about 5 miles before I got home, there were a couple of times it would hardly do down and I had to accelerate up a hill (this is not good in a 300SEL with the A/C on!).
Any clues to whats going on?