can COS(h4 to h1) be applied with RFE response

hi,

I came to US in june on h4.My h1 was filed by some consultancy firm when i was in india,now my case went into rfe.

Can i submit COS along with my rfe response(i am thinking to make my application premium) or need to wait until h1 gets approved and then apply COS.Pls suggest.

Thanks,

Keerthi