Would have thought I would see something funny going on by now if there was anything to see.
Gunna give me a clue ?

 

The transition from P1 to P1/S is a moving target - it shifts because the CalcLLOAD value has atmospheric modifiers.
When you have your fuel mapping set up correctly, you will find there will suddenly be "lumps" at the new transition point because of the incorrect ratio.

 

Did notice this at part throttle - this what you are talking about ?

 

Well, that's pretty subtle.

You will see swings of more than a full AFR point that will move up and down in RPM based on the IAT/BARO/ECT.
They will occasionally occur at full load, especially immediately following (within 3 minutes) a hot re-start.

 

OK - i'll change the f'ers over then ....

 

I'm just sayin'.

I played around with a bunch of different combos and got tired of watching that transition move and lean-out because the PCM didn't understand the injector ratio.