UPDATE: I sent the T3 version 3's back to Feniex via RMA... their service department took 12 business days to ship my replacements. Not great, not horrible. Federal Signal turns most stuff around in 2-3 days ... maybe you get what you pay for.
Anyway - all the warranty replacement T3 version 3 light heads they sent have the same problem! NO STEADY ON. It looks like they have a manufacturing defect on their hands or they dropped the steady on pattern from the V3 and didn't update their flash pattern list.
But wait there's more! There's a reduced intensity pattern between Brake Pop and Tail Mode - made somewhere in the 50-70% intensity range? But it's not on their flash pattern list! Is this the new V3 steady-on? If so, I'd say it's a downgrade from V2's full intensity, but 3-second limited steady on pattern.