I ran a bullet 2 for a year before upgrading to this bullet 3. Here are some tips on operation:
Get rid of the factory air muffler and either extend the air intake to outside of your home (if your tank has low pH problems like mine) or build a simple but much larger muffler with some PVC pipe and filter floss. The factory one will constantly plug up and is a pain to clean.
Run 1 gallon of fresh water through the air intake each week. Dried up salt spray tends to slowly plug it over time.
Disassemble the injector once a month to clean it and inspect it for blockage.
Once you've gotten the water/air level in the skimmer set perfectly do not touch the gate valve or air valve... ever. it takes a bit of fiddling to 'find that perfect spot' and once you have it its really annoying to get it back if you adjust something. If something doesnt look right and the skimmer has been running for a while try cleaning everything first before you try adjusting the gate valve and air valve.
I know mine is the larger version but here are some pictures to show the bubble size with the settings I have it at.
