I never use fabric softener, but I tried re-washing to get off any residue they might have picked up at the laundromat I last washed them at.

Interfacing still fell right off. I shouldn't have waited till the return period was up to try this stuff, so 2 bolts of defective interfacing are thrown out.

Has anyone tried the June Tailor branded interfacing? At this point I'm not terribly trusting in Pellon's quality control.

I used Bosal 312 featherweight interfacing from this site: http://www.goosetracks.com/Interfacingvaca.html

It was fantastic, did not bubble and adhered well. This vendor gives you a chart for figuring how much you need & the cost is $2/yd.