Jack, I am not a mind reader. I didn't get positive "vibes" from your postings that seemed very much like a near condemnation to me and my book notwithstand you blaming me for your shortcomings relative to my postings concering MLB constructiona and the required materials to make them work. You have my most sincere apologies about my mis-understanding. Now, what do you want to know about the subject of materials and MLB constructions. I, as always as evidenced hereing, will provide whatever I can short of buying my book even though you have not time to read or STUDY what you already have on your desk. The question is without you saying before hand the information is more than difficult to understand by you? Please ask and I will reply right here and now, Earl --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/html/forum.htm for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------