uuuuuuuuugh I want a frame data thread as well, the one aliami made is from 2.6 and it was also incorrect lol
1. Toonlink can pull a bomb/throw out projectiles while keeping center stage. Just because you're getting a bomb doesn't mean you have to not be controlling the stage
2. The actual hitbox on the firespike is toonlinks head, and you have to hit with that hitbox alone. If you connect with the regular hitbox and the firespike hitbox, the regular hitbox takes priority. A good way of doing it is kind of like roys dair meteor, you approach from below and rise up with your dair. From there you either have to be creative, read bad DI, or go for a D throw firespike which depending on % and character is always going to hit
3. I don't think many of toonlinks moves are safe on shield, tbh thats one of his biggest problems IMO. You have to be very "Creative" around shields. No Nair shining because you're not fox, so doing something like a random nair on shield gets you shield grabbed. I think all of toonlinks aerials are unsafe on shield, except for dair but at the same time if you dair someones shield you pogo up and they could probably hit you out of that... Also boomerang/bombs don't do anything to shield. You have jab jab into either run away and bait the grab or jab jab grab. HOWEVER, Toonlinks footstool followups are VERY good if you have a bomb so if you know when they're going to shield, you can do that.
4. Bomb does NOTHING vs shields sadly so... theres one thing you could look out for. If you land a bomb vs your opponent you can bomb into upsmash, also recently I've noticed at low %, Bomb Fair Grab is a thing. Bombs just setup into whatever you want as long as you hit one, so you should know when you want to use juggle starters (upsmash) or kill moves (pretty much all of toonlinks aerials, aerial up b, smashes, blah blah)