3200 problem registering bond paper

I have to run a three color job where the two colors are inside a black 1 pt. border.
To test the registration I run about 12 sheets through and then run the same twelve sheets through again to see if the black registers perfectly with the first run. The sheets are moving when I run 20# bond. I tried new suckers, different sucksion settings, different pile heights, and different buckle. When I run card stock the registration is usually right on. Does something need adjusting or the feed rollers worn? Need someones help.

 

feed roller pressure should be 1 and 1/4 turns,make sure paper is fed in evenly by the roller wheels,also dont have your paper guides too tight and you shouldnt have to use suckers on bond paper

 

There is a whole lot of questions first, portrait or landscape, type of damps, job stock, type of plate,year of press ? Printing is a process that .001 of an inch will make a difference, 1/2 % will change the colour, to hold a perfect position from sheet to sheet all must be set right or it ends up wrong. What were the waters set at? And did you wipe the blanket between passes?