H Visas: Travel While H1 is Transferring

Hello.

I have valid H1 status till the end of next year and valid H1 stamp valid till February of next year.
Financial problems in current working company force me to find another employer.
I find it, they filed H1 transfer case.
I'm planning to go on vacation outside US last 2 weeks.
Can I come back thru H1 sticker of my previous employer even while a was outside H1 was transferred?
What should I answer when I will come to US on question "Where are you working?"
Do I need to tell that I'm still working on previous employer but waiting for H1 transfer receipt?
Also my current employer didn't pay me for last month of work.
So i'm working till the end of November. Then leave US on two weeks on vacation, then will come to work on another Employer.
I believe that h1 receipt will be received. Can I come into US based on H1 stamp issued for prev employer and H1 receipt (not approval) for another employer?
H1 transfer case was sent around 3 weeks ago, so I believe receipt will come in 1-2 weeks while I will be on vacation outside US.
And what should I say in that situation to passport control officer?

Thank you.

H Visas: Travel While H1 is Transferring