AT Monogram

I made three lined Monograms.
I'm like everybody else!

Btw, I need your help, I'm not sure on how to grid these Monograms, I see mathematically perfect monogram grid everywhere, but I know about the optical adjustements. So I'm a bit confused, are most designers on the web doing things wrong?

EDIT: Sorry for the re-upload, I made some adjustements.
Arf my shots are too small. Will change that in the futur.