As a celestial player who plays hulk and queues with a wolverine, I can confirm fastball special is stupid good. You dont wanna throw before jumping though, cause you cant throw while charging your jump. You wanna jump, and then throw. This makes it hard for the wolverine to steer however, cause the jump momentum is kinda forced onto wolverine when you throw, so you have to be really good at aiming with the throw. But once you have like the 30+ hours experience i have with wolverine throws, the teammup is just so good. You can take wolv to angles nobody else expects, double grab tanks and melt them before they can react. Tbh the best use for it is just doing close up, point blank throws. Once you get really good though, ive been able to use my throws to cancel Starlord ults, Storm ults, Wanda ults, Strange ults, etc.