Roger on the jiggle, Tech. If you can't get to the push rods real easily, remember that standard 20# copier paper is 0.0038 thick. A trick I've used is to snug until the paper catches and add pre-load. Kinda time consuming, but will work in a pinch - the real trick is to keep using a new chunk of paper and stopping before you tear it. Know it sounds funny, but it works well and you'll be +/- thirty-eight thousands..