I'm trying to use the Meander function to route a differential pair. The pair is named D7_P and D7_N. Using the "run length d7*" command I can see that one trace is 234 mm long and one trace is 238 mm long. I use the command "meander 238mm" and select the pair. I click on either P and N and the move the mouse so both traces meander until the percents read "100.0% 100.0%." However, as is obvious from what the traces are doing and confirmed by "run length d7*" the wrong trace is being extended. The result of the new "run length d7*" is now something like 241 and 252 - the meander made the difference BIGGER!
So, am I doing something obviously wrong? I will say that I do have some intermediate pads involves (i.e. this is USB and there is an ESD chip connected to both traces). Does this screw things up? Is this just something I have to wing by hand? Please help!