I'm going to have to study this later. This was very good, but I'd like to add a few things.
1.) If your timing is right, Pikachu can DASH under certain uncharged projectiles (Fox/falco blaster, uncharged lucario/mewtwo/samus/zss/Wii-fit trainer neutrals, some charged shots.) I have done this on accident a lot, and it's part luck, but it's definitely possible.
2.) It is REALLY easy to get out of combos as Pikachu. (and can be fun, leading into combos as well.)
3.) Turn->grab, turn->tilt, turn->smash. All three of these require different timing to execute properly, without any lag from stopping and/or the turning animation. I'll admit I don't really use them a whole lot, but they are still rather useful.
All that said, I liked this guide a lot. Learned a few things for sure :P