Daisy Petal expression input ohm specs

What’s the pot resistance ohm implementation on the “expression pedal” in the Petal hardware?
TRS “whatever” ohmage?
TS 10k?
etc.
I’m getting unexpected response curves, maybe :slight_smile:
Doing badly at searching documentation, I thought it was in there somewhere. (should be noted on the Petal sales page, IMHO)

https://github.com/electro-smith/Hardware/blob/master/reference/daisy_petal/ES_Daisy_Petal_Rev5.pdf