the way their video described it, you still need your CR. You would need to set it lower. If your goal is 9.5 DKH, set the CR to 9. Then let the doser dose to 9.5
this is where I feel iffy on... now I gotta monitor 2 dosing devices closely.. and in my small coral QT (60gal), alk consumption changes all the time..
be nice if this machine would only read, and not dose.. Or keep the dosing feature as a spare function for vacation