Yep its a bounce. I think you have him on a good dose now since he can get and hold blue for awhile, but those blues still feel wrong to him. Just let him sit on this dose until he quits bouncing.
Okay now a trick for getting insulin out of s stubborn pen. First make sure that the inside plunger thingy is all they way to where it bottoms out to push the insulin out when used as a pen. To do this turn the dial to like 6 or 8 and depress the button. Okay now that you are sure it is snug, back it off to 2u, then insert the syringe needle as normal and push the button in the top of the pen, it may or may not give you the full 2u in the syringe, but it should make sure the insulin gets in the syringe and with very few if any air bubbles.
Mel, Maxwell, Autumn & The Fur Gang