DaveG
Airbush Analyst
The Kkmoon is a different build from the PZ brushes. They are heavier, and maybe even have better finishes, but at least in the samples I have on hand, don't tend to work as well, or "feel" as good... The best side feed option I have found so far is the Master SB86. It is the same build as the 2cc and 9cc Pointzero brushes that I have written lots about. I have a bit more info on this brush on my FB page -I'm sure you can look at them and identify them but just for onlookers sake, careful of which one since one of the kkmoon side feeds is made like an eclipse copy and one is made like a micron copy
https://www.facebook.com/pg/davegs.airbrush.exploration/photos/?tab=album&album_id=1078632708908983
It can be a pretty nice brush - the one serious drawback is that is is quite long, especially in front of the trigger.