I have a wurlitzer 3100 and need some help. the box will play most of the even number selections correct. the odd numbers are off as follows; selection a1 plays l4, a3-l6, a5-l8, a7-l0,a9-m2. i have had others tell me to adjust the back stop pawl on the side that is playing the wrong selection. i have done this several times just to make sure all is right and believe that both sides are correct. i have also been told to make sure that the ec is mounted correctly by inserting a #2 sized screw driver in the bottom. this seems to be ok. my question is if the ec is out of alignment just a small amount would this make the unit play as i stated above? secondly it seems that the record speed is a bit slow but i see nothing wrong with the mounting. any help would be appreciated.