Alright, I was wrong! Dangit, that never happens!
My stock oil sensor or gauge must be bad, because I hooked up a digital oil pressure gauge, and my readings are as follows:
Warm idle: 15-18 psi
Cruising at 3k RPM: 75 psi
Cold idle: 25-30
Cold, cruising at 3k RPM: ~90 psi
Seems alright to me? Back to the drawing board on this phantom knock thing. Its weird, I get knock when the car is warm, oil pressure is lowest, and I do like a 1st or 2nd gear pull. Once the oil pressure rises up, it stops knocking. Any suggestions on why this might be happening?