Hey Man, Thanks for the reply. I think I'd rather have it driven from the schematic. I'll try that as soon as our new building network teething problems are over. Regards, Gary Gary E. MacIndoe PCB Design Engineer Fort Collins, Colorado amd.com gary.macindoe@xxxxxxx ________________________________ From: icu-pcb-forum-bounce@xxxxxxxxxxxxx [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Man Tran Sent: Wednesday, April 18, 2007 8:51 AM To: icu-pcb-forum@xxxxxxxxxxxxx Subject: [PCB_FORUM] Re: Relative prop delay Gary, Checkout the "delta" value in Relative Propagation Delay, it should serve well for package's length. -man ________________________________ From: icu-pcb-forum-bounce@xxxxxxxxxxxxx [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Macindoe, Gary Sent: Wednesday, April 18, 2007 7:44 AM To: icu-pcb-forum@xxxxxxxxxxxxx Subject: [PCB_FORUM] Relative prop delay Hey guys, It has reached the point where I have to consider the package length when matching some nets. I am using Relative Propagation Delay in CM, and was wondering if anyone knows how to include the package lengths? I thought maybe the Pin Delay columns, but they are grayed out. Any ideas? Regards, Gary Gary E. MacIndoe PCB Design Engineer Fort Collins, Colorado amd.com gary.macindoe@xxxxxxx