HoopDeeDoo mixing $$$ and DP?

[ReallyFunMom]

I'm pretty sure you can't use 4 TS for 2 adults and pay OOP for 2 kids b/c I think dinner shows and CRT says you have to pay for all or use credits for all but what if you are down to only 4 TS credits left and need 8 TS for the show? I'm doing HDDR on the last night and figured if I had enough TS credit, great, if not, pay OOP where short. I guess they'd make you pay for everything OOP and have to use 4 TS credits in the morning we leave. Just seems like you should be able to use some TS credits and pay OOP if you are out but I don't think the rules allow that. Anyone try?