If you get a chance, do you mind taking a quick picture of how you have your connections and hoses set up? I know I could figure something out that works, but it'll just give me another data point to consider.
I made this a PM because I didn't know if you wanted to post it publicly. Feel free to reply wherever suits you best.
I went home at lunch with the intention of getting pix of my alternate airbrush hose set-up that I use to connect to shop air, but alas, it seems I took apart the quick release in the interim and I couldn't find the adaptor to show you. I'll look harder tonight.
Meanwhile, here are some pix; total overkill but the principles are the same and maybe some of this will give you ideas. Sorry crappy pictures -- taken with my phone.
My compressor is connected by a semi-rigid line to 3" galvanized pipe that routes air to stations around the shop. This is of no matter to you, this just for clarity.
Here's a station -- this is the equivalent of the business end of your compressor. The orange thing is a moisture trap; the black thing is a regulator. note that each station has a drain cock -- (open slowly!!!) -- just pointing this out to emphasize again the fact that compressors create moisture in the air supply, the hotter they get the more so.
The output on this particular regulator points down; a short length of galvanized pipe terminates in a quick release coupler (here with a black air hose attached).
Here are a few air tools and accessories with quick release couplings. You'll see a couple of die grinders, one with a pig-tail hose, the other with the male coupling screwed directly into its handle; an oiler (air tools need oil -- paint tools don't -- keep those hoses separate!) also a 1 into three manifold so you can have 3 tools connected simultaneously...