My people!
Actually it was a little weird to read the narrow calves thread and see people with measurements close to mine -- because I have NEVER had a boot be too gappy on me!
Like Katiepea I wear a smaller shoe size, though, which means the circumference shrinks, sigh. [And like others I have the 0.5 inch difference L to R...when I can juuuust squeeze into some boots with the R, the L will *not* zip.]
Unfortunately I am also one who usually find true WW calf boots too big. So for now I will continue with my trial and error, though I really need to look into the custom gusset. I've only ever found one leather stretch boot I like (and of course even that it a TAD snug!).
One thing I *do* do -- for RL shopping, I bring a tape measure and whip it right out before the boot comes anywhere near my calf. Helps keep my blood pressure down.
[I don't know about you all, but I have to add 0.75 inch to my circumference(s) to get a boot that fits!]
Truthfully I am enslaved to online boot shopping...but again I have to often guess at what the size 6 will be and make sure I am "buying up" vs buying a measurement that is exactly my calf size (x two, grrrr.)
If I find any other tips or resources I will bring them here; in the meantime I will be hoping for more!