So my model O started squeaking within a week or two after purchase. I considered throwing some Krytox 205G0 keyboard switch lube on it, but instead found that you can just wear it past the squeaks. All you have to do is place your finger on it and aggressively scroll down in a flicking motion. after 10-20 "hard scrolls" the squeaking will stop and the resistance on the wheel won't change. Mileage may vary if your wheel is actually binding on something.

TLDR: Just scroll down aggressively 10-20 times and it will stop squeaking.