Thanks Bob great info. Are the new imports worth a look or should I stick with top brands? This is a tool I'd like to do once if possible. BTW you were right about MSC being close. If I can get this narrowed down I can probably just go get the thing this week. Only a 35 minute drive from my house. Of course on the other hand If I can find a core as you put it. Several of the certification companies come to Reno by scheduled dates from what I see on various sites. Then again might be throwing money down a hole if my core is too far out. Another part of my study. I bought that DVD set on Ebay for scraping. Part way through it now. I do like how the guy presents fixing squareness issues. Also showing the way measurements are taken for that and parallelism on a Bridgeport mill he is scraping in as demonstration. I'm sure you guys know which one I'm talking about.