I know I pushed for moving fast because of the ketones. If they are still gone, I'd say moving slower now is good! Those high PSs make me nervous, since they were lower before. I see last night you got about a 50% drop by +4, so it may be going a little steep coming off a higher PS (nice to see the response to the insulin though!!!).
I definitely agree about not raising further at this point til you can see the nadir, and get a little more data (barring some other factor like ketones). I'm almost wondering if maybe you should try 3.25u, but I'm hesistant to actually recommend you lower the dose when last night is the first cycle I've seen lately that looks to have a good response. I'm hoping you may find that holding the dose somewhere around here - at least 3.0 and no more than 3.5 - shows some improvement. Not sure though, so I will tune in tomorrow for the update & to see what others say. Happy to see that yellow # though, it's a start!!!