Jeff, IPC-7351 LP Calculator testimonies - http://www.pcblibraries.com/customerinfo/testimonies7351.asp Partial list of customers - http://www.pcblibraries.com/customerinfo/?show=more Here is a quote from IPC - The IPC-7351A has become one of the top sellers among IPC standards due to the popularity of the LP software tool. Tom H From: jeff <id_limestone@xxxxxxxxx> To: icu-pcb-forum@xxxxxxxxxxxxx Sent: Wednesday, March 5, 2008 12:22:10 PM Subject: [PCB_FORUM] PCB Libraries IPC-7351 calculator/wizard software Is anyone using this program to create land patterns? Any comments or feedback? Have the larger assembly houses signed off on the patterns that this software produces? Jeff