Cool idea, but how do you account for variations on what certain brands consider a 33-length, for example?

Like for example, 32-waist Wrangler seems to be equivalent to 30-waist Gap. Only way I know this is because I tried on the jeans at the mall and found those to be the most comfortable on me.

The variation is strange and it's not just pants but also shoes sizes aren't consistent between brands either. I think the way Zappos solves this is they send you the shoes and you send them back if they don't fit well.

That's part of why it's worth $20.

There would need to be some brand research done, checking the fitting and sizing of various brands, so you could know that "with a 31 inch waist, measured around the navel, I would fit in 30 inch Gap jeans and 32 inch Wranglers."

That trip to try on those two pairs of jeans cost you what, an hour? two hours?

Curious, what is that price point you have in mind?

I think a 40% price premium would be reasonable.

What if it wasn't sight unseen? What if someone could go with you and provide you a fashionable opinion? Would you let them take the lead?

I want to say possibly but the honest truth is Nordstrom has (or had) a personal shopper option and I never used them when shopping there so I can't imagine doing so anywhere else either.

Who's "they" that you refer to when you say "they don't tend to respect the blue rule"?

If you just founded the company, you probably shouldn't even think about things like accounting because at that stage only making product and selling product matter.