It would be great if you could get some mid cycle numbers - in the day and at night. Sometimes they drop lower at night than in the day and sometimes vice versa. If you know, then you might be able to adjust the dose to reflect that.
It looks like 3 units is too much. Once you know what is happening mid cycle, you might think about reducing to 2.5 on the higher pre shots and maybe 2 on the lower pinks and yellows. It is okay to vary the dose if one dose works okay on the higher levels and another works on the lower ones. But first, you need to know what is happening at nadir.
For now, I'd reduce to be safe and hopefully get two shootable numbers a day.