Coop, I respect your efforts, but reports like these really make me want to avoid these particular stretches and focus on my trigger point therapy workbook first to see what results I can get out of it. The author had similar problems with stretching that you're reporting and didn't get long lasting relief until he focused on trigger points.

The book has 380 reviews on Amazon averaging 4.5 stars and I can vouch that the intro material in it is excellently written. Hopefully in a month or two I'll be able to report whether or not it helped!

I did start with the Egoscue stretches/exercises which I found easy to learn and quite helpful with my pec minor and shoulder pain which is now mostly gone.