Default Changed location with same company requires H1B stamping again?

[dkimmi]

I changed my job location from Colordao to California this year, with same company and same job title/duties. My employer's lawyer firm filed my amended LCA(labor condition application). I already have stamped H1B visa when I visited India last year.

My lawyer wants me to stamp my visa again this year, when I visit India. I'm not sure, if I really have to stamp, because I already have a valid H1B visa(till end of 2012) and I only changed my job location(my company and job description/position is still same).

Does anyone know, if I have to stamp my visa again?

[dkimmi]

I learned from my employer's law firm that I only need to show my certified LCA on re-entry along with passport and I-797.