John...does the taper fit in your Powermatic OK? I read in a review of the Nova live center that the MT was to short to work on the Powermatic and the Delta midi. See below:
"The shaft is too short to allow seating in a Powermatic and Delta Midi lathe. The Nova repair center said it will only fit Nova lathes and the company is working on the problem. I'v had mine for over a month and the problem hasn't been corrected. This product has great potential and I don't want to return it if a fix will be coming soon. Make sure it will fit your lathe before purchasing".