A couple more things about my process, to help:
1. I have a stainless steel basket I put my hops into so it doesn't clog up pumps, etc.
2. I added 1.25 teaspoon per gallon of Fermax at 15 minutes left in boil
3. No kettle fining agents
4. At flameout I run out of the kettle into my chugger pump, into my dudadiesel plate chiller, and back into my kettle. Last night I did a 15 minute whirlpool with the Simcoe Cryo before turning on the water to chill it down. Chill down took about 10 total minutes.
So I am really scratching my head here. Between the time I start the boil until the time I am knocked out, my wort picked up some alkalinity causing 6/10th of an increase. What could cause this sharp of an increase? Chiller? Pump? Fermax? Could the stainless steel basket and/or kettle be picking up caked on alkalinity over usage?
And I think it's a systemic problem because I measured my latest IPA which tasted flabby and it measured for a final PH of 4.7 next to a Treehouse beer of 4.3.