More Stingy with Assist

A while ago I posted a thread on the woes I've been having with the IMA. It's been very conservative on assist but very aggressive with charging. The battery guage, however, is usually completely full, rarely dipping down into the "normal" one-bar-from-full reading.

I'm getting only partial assist under hard acceleration, and 3-5 bars of charging under normal cruising. The constant charging is having a very detrimental effect on the mileage.

This problem presented itself after my first recal. (Though the car has probrably had recals before, I bought it used.) The BCM reset aggravated the problem to it's current state. Neither the IMA nor the check engine light is lit, so I'm assuming that the computer has not detected any fault.

I have a scheduled maintainance coming up in 2500 kilometers, so my current plan is to see if that turns up anything. However, since the IMA and check engine light are not on I assume that the car is passing it's diagnostics, hence the service might not turn up anything.

Any advice?