Point well taken Brian. However, I have done many 10, 5, and other oz., inclucing 10 mil CIC, inners with no trouble with certain provisions. As you said, high resin to glass ratio prepregs are required to "fill" during relamination. I know the outers can be done when used as heat sinks or other "coarse" features. It's the features that need attention. Obviously, fine line traces are not part of the equation. MoonMan --------------------------------------------------------------------------------- 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 ---------------------------------------------------------------------------------