>Thanks Ron, >Isn't the plate just too low or aliquot too low? There was crown and >bearing, just not enough on the aliquot. Lance, How much crown? How much bearing? I typically see a fair bearing angle across aliquots. With no bearing on the aliquot, what must the bearing on the bridge be if the plate is that low or the aliquot that short? That would concern me. That's why I wondered what the bearing at the bridge actually was. Otherwise, we're just guessing. Incidentally, what kept the aliquot in place? >I imagine that shimming the >aliquot and controlling humidity would have been the easiest fix. Probably, or moving the aliquot back, leaving a decent bearing on both the aliquot and the bridge, assuming that would be possible. Yea, I know, it changes the tuning on the duplex, but a couple of measurements would have indicated if it was already in the "right" place or not. Not enough information to diagnose, but the other tech doesn't seem too concerned. Ah well, another day in the trenches. Ron N
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