You didn't. I basically told everyone not to bother, since they kept falling out of the frames I was using.
You guys all seem to be making it work for you, so I guess I just held everyone back. It's possible that the newer Bottlecap frames have slightly smaller tolerances, or it might just have been me.
I did again this morning with a pair of polarized XLJs in a Black Chrome frame and they fit as snugly as you could hope for.
Oops.