I had two A01’s arrive yesterday, after a month long trip from China (and oddly enough, postmarked Vanuatu!).
They are exactly as described in the original post. Drivers are clearly marked ‘Manker’, strobe is well hidden, tint is < / > 4,000 k, and I’m not noticing any PWM (although I’m not very PWM sensitive).
One seemed to have a slight intermittent contact issue, but cleaning the threads and the contact surface at the front of the tube solved that.
The front of the tube appears to be either polished smooth after the ano is applied, or else protected so the ano doesn’t stick to it - I noticed a whitish waxy film on that surface that seemed to be preventing solid contact. A brisk wipe with alcohol on a paper towel removed it at once, and the light immediately worked properly.
All in all, I’m very pleased. They work as well as any other twistie (and I have a quite a few from several premium makers) - and of course, the tint is superior. I won’t be modding these two; they’re excellent just the way they are.