Stock 904 input shaft and 5k transbrake

anyone wanna take a guess on how passes before the stock 904 Input shaft breaks
I finally got my car to cut a good light
It took leaving off the two-step @ 5k
I personally don’t have any experience with treating a stock input shaft this rough
I kinda feel like it’s not having a good time
But I’m gonna keep on keeping on
Any guesses on how many passes before breaks
O yeah the car is roughly 3000lbs