DAA Automatic Brass Marker
Pretty much mirroring the other comments - neat little tool that works but needs refinement. The unit itself could benefit from a redesign to make it less "garage-made" in appearance. Bullet orientation "flipper" is very inconsistent and hard to tune - I believe DAA knows this thus the disclaimer about bullet drop speed. Workaround is to use a single stripe, or just not care about color stripe orientation, which is they way I went. Red/Black or Black/Red it's all good to me. Also best results with Sharpie Brush Tip Markers over the standard sharpie, at least in the US - with a bullet taped to the end of the marker for weight to keep the markers from bouncing.
Overall it's a neat tool with a few quirks, but despite the setup challenges and quirks, I'm happy with the results. also, I don't know if I got a bad one but it's very clankly/raspy sounding when running compared to the one in the video.
[DAA] yes, it is important that the bullets arrive at the correct speed in order to be consistently flipped correctly. We have found it very reliable (more than 99%) when setup correctly, but it can take some experimentation in order to find the right position for the Brass Marker to receive the rounds down the chute at the correct speed for best performance. If you spend the time once to figure out the best position for your setup, you will be good to go!