I originally bought a stripped down AMF/Century Vacu Jig Mill/Drill. We later added on the Innovative Vacu Jig set up. As much volume as we do, the Vacu Jig system is very good, very fast on and off the press. There are times that I miss the safety plate that comes on the AMF version. We have thrown balls off the press, usually only when cutting down plug or slugs with the plug cutter.
In 7+ years only one ball could I not get a seal on. We put masking or duct tape over labels and serial numbers. If that is not strong enough, then we use a ring of modeling clay around the rim of the jig where the ball meets it. This is usually enough. Most of the time that we threw balls off the press, we had plenty of pressure, but just didn't take enough time.
Have replaced a couple of switches to turn the motor off/on and that is about it. Vacuum motor has never failed, we average around 25lbs of pressure/suction/vaccuum. We don't have digital readouts, never have, don't really know how to use them. Always said I was going to add that on, but never have.
Ebonite is a little pricey. I think AMF is too, but not sure. Check out Innovative in California and Jayhawk in Kansas. Have dealt with both of these companies before, have always got the job done, good people.
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Mike Austin's Precision Pro Shop
Houston, TX
Drilling and Tech Advice BirdDogbowling.com
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