So I may not understand something, but I didn't think the pressure I'm filling at mattered. I thought it was supposed to be serving pressure. Some explanation may be helpful so you don't all think I'm a super dummy.
So I carb the keg to serving carbonation, and it's sitting there at 12 psi. The point of the counter pressure bottle filler is to keep the bottle at the same psi as the keg, so it doesn't foam up while you're trying to fill it. Which should mean the bottle is put at 12 psi, then the beer is filled (which is at the same psi as the keg, so ideally no foam), and the pressure relief valve is slowly let to leak to adjust for the change in beer volume in the bottle.
Now if that's the case, and I get my keg to serving pressure of 12 psi, why would I then cut it down to 2-3 psi, only to cut the gas in on the bottle filler also down to 2-3 psi? It doesn't seem logical for me to carb at 12 psi, cut it down to 2-3 psi to bottle, then have it crank back up to 12 psi once capped (or there abouts). Am I missing something?
What I had done was fill at 12 psi. Foaming prevented the bottles from getting full all the way (or even at consistent levels). I tried putting the pressure release very low, and it took forever for a bottle to fill, but there was still foam. Then the pressure in the bottle had to be released before I removed the cork. If I shut the beer off and released the pressure with the release valve, I got a gusher and beer went everywhere. If I didn't release all the pressure, when I pulled the bottle filler out I got a spray of beer 5 feet out. If I increased the pressure release on the next bottle as I filled, there was more foam than before. After doing a dozen bottles, I finally got it to where it wasn't spraying beer all over the place and making a mess, but the fill levels were still inconsistent (and not full) due to the foam issue.
So do I just need more experience?