H1B Stamping - Change of employer

I am currently on H1B visa with No stamp in passport working for Employer A. I was on OPT previously. I got another job (employer B) and planning to go to India for visa stamping based on new I-797 notice.

Is it advisable to go for stamping with only offer letter and I-797 approval from Employer B? I wont be having paystubs as I want to travel before joining new employer.

This is okay. Consult your employer’s immigration lawyer and carry documents per their advice.