Hi, Cathleen. I'm not sure if I'm seeing a bounce. Roxy has been pretty consistently in the yellows and pinks.
From what your spreadsheet (SS) looks like, I'm assuming that you're following SLGS. Looking back to late March, it looks like you were holding the 0.5u dose longer than a week. Generally, you hold a dose only when you are seeing nadirs in a normal range. With SLGS, you evaluate the dose every 7 days. If numbers aren't where you want them, it's time to increase the dose.
If you're concerned about the numbers, frankly, you test enough to follow TR. TR is more aggressive and the only caveat is that Roxy needs to be on a low carb, canned food diet. From the note on your SS, it looks like Roxy's diet is compatible with TR, as well.
When a cat is bouncing, you don't want to increase the dose if the bounce is breaking. The additional insulin plus numbers that can be rapidly heading down, can make for a very "exciting" cycle.