Wheel Cap with Class B Blues?

So I've seen in multiple places that you either can or can't wear the service (wheel) cap with class B Blues. Someone on CapTalk said you could, however CapTalk is dead now and doesn't actually have verifiable information anymore. I also have heard that it's only for class A blues, which also would make sense. 39-1 isn't very clear about this either. "Men’s Service Cap (Wheel Cap). Will only be worn with the Service Dress and Service uniforms by officers, NCOs and cadet officers". That being said, am I confused on what the Service Dress and Service uniforms are?

What are the standards that you guys use/know? My squadron isn't very knowledgeable with uniform regulations, as we are very small (only Alpha and Bravo flights). I'm trying to get a lot of uniform research done for my squadron so we can be up to regs for the upcoming Cadet Competition.

Thanks!