I got the 112a even though it was used and abused, slightly bent needle tip, totally buggered screw that holds the internal guide in place and plenty of dried paint.
After cleaning out the dried paint and working on the needle I was able to give it a test run.
Very impressed at how well it worked out of the box so to speak, smooth trigger, fine atomization.
Unfortunately it is not an upgrade for me as the knockoff I have worked on performs just as well
I do like the brush, small and light with a good paint reservoir.
The spray pattern seems slightly tighter than my knockoff and it seems to be more tolerant of thicker paint, the knockoff needs a drop more reducer to achieve the same results.
I'll end up working on the Apollo and if I can bring it up a step it will be my primary brush.
Jim