Overhoning is way less of a problem then underhoning is, and honestly even if you overhone an edge at 1k it takes about 3 backhoning strokes to fix it...
But that being said you are right if the edge "CUTS" the hair the bevel is set...
Keep in mind though NONE of these tests are 100% accurate every single one of them is open to interpetatioon...
If you read what Jimmy just posted about the HHT being used by some people at lower grit and that he never found much use for it??? I would not have been that nice, I would have said that a 1k HHT was about laughable because of the false positives :) Same with using the AHT (arm hair test) by popping hairs above skin level as a test, it has to be calibrated to your hair, or it drops back into the Parlor Trick aspect of testing...
We have had this discussion way to many times about the HHT, it has to be calibrated to your hair to be of any use as a test, and it is only usable to each person...
Once you try and use the AHT as a sharpness test the same rules apply, BUT as a bevel test it is pretty accurate...