H4EAD extension with H1B Premium or without premium

Hi Anil,

Can you help me on taking final decision.

My H1B and my spouse H4EAD are expiring in 6 months, I am planning to apply for extension of h1B, H4 and H4EAD at same time.

If I get H1B process in premium will that help in reducing H4 and H4EAD processing times? I am asking as I am not in hurry for H1B extension but want to get h4 EAD quickly to avoid the job loss.

Want to understand USCIS processing pattern , Do they consider H1B approval date or H4&H4EAD filing date to process? If H1B approval doesn’t help I will not go for H1B premium processing.

Thanks in advance!!!