Thanks to all those who responded on my upper bunk clearance issue (especially Dominic and Marc).  I think it is because of the failing poptop bar/frame.  Apparently this is more common than I thought, although I don't recall reading about it on the list.  As discussed on The Samba:
http://www.thesamba.com/vw/forum/viewtopic.php?t=420614&highlight=push+bar
And also on a website out of Quebec for Atelier SPK who make canvas (I think with good reviews?)
http://www.atelierspk.com/Install.html
So there seems to be a few home made solutions and I'm looking to hear from those that have stood the test of time.  David B I'm cc'ing you as it sounds like you have some experience here!
Any vendors want a piece of the action?!
Thanks again everyoneJeff85 Westfalia GL

> Date: Sun, 5 May 2013 01:42:16 -0500
> From: jpalmer@MYMTS.NET
> Subject: Out of storage!
> To: vanagon@GERRY.VANAGON.COM
> 
> Better late than never.  Dropped a freshly charged battery in and fired right up!  Felt great.  So this will be the first of many seasonal questions � :)
> 
> Here's a funny one.  The upper bunk doesn't seem to clear the roof anymore when unfolding the bed.  One corner is catching on the roof.  Is my top sinking or bed rising??
> 
> Thanks
> Jeff
> 85 Westfalia GL
> Winnipeg