What’s the best goalkeeper for the practice arena runs? Please state their name, league and club.

I just created my own GK. No rules against it, AFAIK. Even with created players, though, you should set the speed/accel/gk ability sliders so that the GK can't position himself properly, and also increase shot speed and power. It makes the run way easier.

Good tip :)

And yes, a custom GK is allowed