Brian,it's frustrating being so far a way from you guys,i'd love to come and help!
An extra pair of hands is always good.
You shouldn't have to resort to gluing the rubber in place.
If you can,have a helper to hold the glass as you pull the cord,have them follow you round,maintaining firm pressure just behind the cord as you go. Have them gently slap the glass to 'encourage' the rubber to lip over the pinchweld.
DO NOT slap the glass in front of the cord before the rubber comes over.
Use plenty of lube. As I said earlier,glass cleaner should suffice.
Be patient,and if your glass is laminated,don't be too heavy handed with it!
I do agree though,the corners can be a PITA,but persevere,it will go in!