L1 from Company A and H1B from company B


I am currently in US with Company A on L1B visa and i have an approved Consular Processing H1 B from another company B in FY2015 quota.

Can some one tell me if I go for stamping of Company B’s H1 B, will there be any possibility of cancelling company A’s L1?. Ideally they shouldn’t as it was not a change of status petition.

I would like to get company B’s H1 B stamped before October 1st but still enter US with company A’s L1 and switch to company B at later point of time.

Please provide your valuable thoghts.

Thanks once again!!!.