Used to go up an icy Morningside, on bald tires, to Scarborough College, almost exactly the opposite of the way that you wanted to.I haven't ridden a bike with computerized help but I remember the old days of vehicle TC and it was miserable. Trying to climb a very icy hill near my parents and was going to make it as I had a big run up with lots of speed and TC chopped the throttle and slammed on the brakes to try to help me and control wheel spin. Didn't make it over and it was too icy to stay in place so now I was spinning down the icy hill. F you TC, F you. Newer TC is much much better.
Wheelspin is usually what stops you from making it.