Eric,
This topic was discussed recently and I found that my shift lever was pointing towards the back of the car. I reversed it and it is a very different feel.
Regarding the removal of the knob. My own experience has been that by holding a pair of pliers below the knob and gently tapping from below, the knob will pop off.
I hope this helps.
Ted
1969 280SL w/ foward bending shift lever