For what it's worth, if you're in open loop, I've found you need to set all open loop fueling to a 1.0 eq ratio also, otherwise after a flash/restart it'll be a little fat for a couple minutes, and it will effect the minimum airflow...I also have the injector tip temp offset disabled, and I still find i need about 3.5 minutes to let things settle in to find the true minimum airflow at idle RPM.
By keeping proportional enabled the car (mines a stick shift) is better at doing things like driving itself up a sloped driveway without stalling too. Just food for thought.
Either way, thank you for posting this. I've struggled with finding the best way to make my car idle properly for a long time...this is the nicest it's been since it was stock.