Hopefully he just needs the full 10 cycles to adjust.Maybe he just need a couple of more days to settle into the 0.75U dose. If he doesn't start working the dose, you could try a fat 0.75 or a skinny 1U and see if that helps.
Do you use callipers?

You want to get the ones that read up to 2 decimals that is, 0.01mm and not 0.1mm and that have a screw at the top of the display to lock the arms in place once set.I’ll pick up some calipers today!
Oooh this great! Thank you!It gets easier with time. This is a photo of my set-up. I use the mylight app (on a tablet or phablet) as a backlight and my smartphone camera as a magnifier.
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And this is what I see through my phone camera:
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