Someone should tell the manufacturer this. The paperwork included with the Reg calls it an upstream reg as do the tech support guys that I called. (Not being sarcastic, if it's not an upstream reg, they shouldn't call it that..but they sure do.)paulwlee:Nope. It's downstream, like almost all modern regulators.
Yep, that's what I meant.The downside is what you said, a little bit of care in rinsing the regulators. Some people dunk the first stage by itself first, and then the second stage next after taking the first stage out. (I think you meant 1st stage above the second stage, not the other way around, but by using the method just mentioned, no need to hold the regulator above the rinse tank.)

The first 3 trips I took with my Z1, keeping them pressurized and rinsed off really wasn't much of an option with the way the dive operator worked. Those trips were enough for me.I just rinse them in flowing water while still pressurized, never soak them. I stopped soaking my regulators maybe 5 years ago, and my first B1 that's near 7 years old is still in top condition.