im sorry but ya since i cant see your face i guess i had read it in the wrong perspective since i am only reading it
alright lets start out fresh
when turning a drift the outside wheels would be faster.Right?
and since were driving on a serously low grip place because of our tires then that action would take effect of the car turning its body to one side (the cars body angle to the corner)
so that would create the cars angle and since your angle is sapposed to be set at the apex you begin to counter steer and your angle stays constant till the end of your drift...and when you counter steer (that is if you have the set car angle) is when your rear wheels start to act as if they had the same rpms (not saying they do but they get close to)
if there is any parts you dont understand or i made it a bit foggy just tell K?