Gary, Thanks for the input and clarification. Can you point to how reliability studies were done to assure how reliable these holes, in various aspects and materials, are? Is round robin testing still being done? I'm way to old to remember how testing was/is being done. Also, any more progress with DFM/CE relative to using GD&T? Regards, Earl --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d 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 delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail 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 ---------------------------------------------------------------------------------