Are there any disadvantages to leaving a diffuser stone (0.5micron) in the keg for serving? The one I had bought is attached to a replacement SS dip tube and permanently in the keg.
My option would be to transfer to a new keg after carbonation, but... extra cleaning/sani/time/effort and chance of O2/contam. In other words, if it's not a big factor, and the stone will still bubble gas up to the headspace for serving, I won't bother.
To take that further, after I get my carb to the desired volume using temp chart, wetting psi, atmospheric, and elevation, do I leave gas at that setting or lower it to regular chart pressure to just push out the beer at that CO2 volume?