@mindhead1 owning both the Zu and Onegas, you can’t go wrong either way. Vs the zu union, the omegas will be a little more forgiving at the expense of a bigger more immersive sound.
the best part of the zu for you is they have several pairs discounted in their “ready to ship” section. You get a 60 day return period on them. Get them. Break them in for a month, then spend a couple weeks decided if the zu is for you.
louis omegas are usually around 3 months out, since he’s a one man shop, but you get a beautiful speaker at a very good price. Unless you can find what you want used, which can be difficult. I’ll be putting mine up soon.