Yeah that's about right on the sizing. I like having nonflare plugs with o-rings, although they feel a lot heavier.
I did pop in my gfs 7/16 (i think) kaos plugs (pretty much the same as your ear skins) a while back but it felt a little too tight, not a whole lot, but I just more or less put them in to try them, not really of interest to keep wearing them, so I took them out.
And yeah, I've done hot showers, hot water soaks, vitamin e, and so forth. I'm not too concerned though, I can survive without stretching for a while.
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