I've heard a couple Jamil podcasts where he mentions testing carbonation levels each day to dial in just the right amount of CO2 for a certain beer. I'd like to do that, but now I'm wondering how this works. Say you set the regulator to 12 psi and each day it's absorbing more and more. The day that it reaches perfection, what do you do? If it's still absorbing CO2 each day, how do you know what to dial the regulator down to in order for it to stay where it is? The only thing I can think of is to just disconnect and leave it alone for a few days to let it balance out (Hopefully absorbing the extra pressure in the headspace won't change the number of volumes too much.). Then put some sort of pressure gauge on the gas-in post to see how much pressure there is and set the regulator to that amount and hook it back up. Is this what folks do, or is there an obvious easier answer that I'm missing?

I think I've been overcarbing in the past and it's caused a bit of a bitter bite, so I wanted to focus on how much to use with the Bee Cave Rye IPA I made. I've currently got my regulator set at 10 psi and the fridge is 38. According to charts I've seen this comes out to 2.38 volumes.

According to this I'm on the high end of the range for the IPA style (I'd like to hear opinions on what folks here use for IPAs). It's been about 5 days under pressure and it's nowhere close, but I'm not sure what to do once it feels right in order to keep it there.