I used bolts, not screws. Also put a plastic tube from the primer drop hole into a collector (I use an empty powder bottle).
I have found that proper and repeated lubrication of the Pro 1000 does wonders.
Also, the motion is not a smooth up-down cycle. It is a firm up to a definite stop, hesitate, don't jerk, a smooth down to a definite bottom stop and repeat. Remember the actions being performed at the ends of each of these motions.
Compressed or close to being compressed powder charges don't do well
Enjoy,
OSOK