A couple of months ago it struck me that I had never heard anybody mention the use of modern bodyshop fillers and people were still using the old lacquer based products. They smell, take forever to dry, shrink, and can be affected by paint.
I posted on a couple of modeling BB's and got only one positive response. I am pleased to see other people trying them out.
You can buy quart quantities of Polyester Glazing Putty here for $13.
http://autobodystore.net/Merchant2/merchant.mvc?Screen=CTGY&Category_Code=FM
I think that this is the future.