1st off. if any parts are suspect. Call RCBS and they will send you out replacements free of charge. They dont care how you got the press they will cover it.
2nd ditch the old powder drop system. Its a over charge waiting to happen.
I have the Piggy Back two. That came with some whako jacko. Powder drop.
Powder bridging and unintended drops were common.
I updated to the case activated kit, and for some loads I use the LEE auto disk measure.
Should turn out to be a very usable 4 station press for you.