I'll be traveling in a party of 4 later this year on 2 PNRs (due to the use of Amex companion passes) and have a couple of questions about Sky Club access. I have the Delta Reserve Amex and several unused Sky Club guest passes from my Reserve. Another member of the party on the other PNR has the Delta Platinum Amex.

1. Will there be any issues with me bringing in 2 guests since one of them will be on a different PNR? Based on Delta's Sky Club access page, I don't think that should be an issue but I'd appreciate any experiences since every time I've used the guest access benefit everyone has been on the same PNR.
2. Since the two individuals that don't have Delta Amex cards will consume my two guest allotment, is it possible to use one of my guest passes to "pay" for the person entering with their Delta Platinum Amex? This will be at LGA in case it makes a difference since I know some clubs have the self-service entry kiosks now.

Thanks in advance.