Glory, I had those L&Ls a few years ago too, and I also found they stretched. Then I lost a size and the jeans were quite big on me.
I decided to bring home my regular size. I'll wear them around the house for a while first to see how they do or don't stretch, and I want to try them on with the shoes I anticipate wearing with them to see how the length works.
I want to try some lighter mid wash flares/bootcuts (I own some older dark wash ones from a couple of years ago) but am not sure I want to spend the $$$ for premium right now to try the look. I'm also not sure I want to go with a dramatic flare, and the bootcut on these is a nice moderate flare. If these attain workhorse status and it seems like a trend that has legs for me, then maybe I'll step up in quality later.