Lori, I see your point on Charlie's numbers, and .2 is a small bump, so it is taking a long time to get progress.
If you only do 2 cycles of 3u and jump to 3.2u as you are planning, I think I would wait at least 3-4 cycles at 3.2u before increasing again so you can get a several good mid point checks on cycle 3 or 4, to see where you are.
Yes, I call a "mini curve" testing every few hours to hopefully catch the curve, (onset, nadir, duration)
At the first sign of blue, I would go slower.
Are you testing for ketones, using the urine strips "ketodiastyx"?