Ok, not going to lie. I had that "What if" pondering all yesterday and this morning. So after 202 days of not checking my Alk, I borrowed a friends to check it out.
This is what I got:
reading in ml 0.52, KH value in dKH 7.3
I did a 10% WC yesterday morning, and about 2 weeks off from a 30% WC.
And you guys are all right, it all took but 2 minutes to achieve this test.