She is flat and high with nadirs over 300. You can always wait another day to increase if you prefer that, though being able to monitor +5 is good enough.
Let's see what she does tonight.
Thanks @Bandit's Mom - I figured from past experience and let both of us sleep.
Yesterday she had her lowest AMPS ever, and today her highest (498) - another round on the rollercoaster
Increased her dose to 3.5 this morning as you recommended.