i thought the same, but after I saw the alk swing to even out pH, I decided it wasn't worth it - dkh was swinging up to 1.0. With this setting my ph swings 8.3 to 8.5 and alk only swings 0.2dkH as well.That’s great - I like it. Right now I’ve got mine dosing alk most of the time but then dumps the calcium in over a 4 hour span - I think I’ll break it up more.
I’ve also been wondering about more alk overnight to help keep ph up but my ph is typically 8.15- 8.25 with the co2 scrubber so it may not matter as much.