For all follow up or techniques look my YT channel
https://www.youtube.com/channel/UCRH6gg4B8lsh2YjHvdbK1fg
after for the WFT neutral u need to masteries the Breverse and the Side B lag cancel , the jump out of shield after a Bneutral and know your frame data.
WFT neutral Play like this ( for me ) : Trap your ennemy with tomahawk and Breverse. try to grab when u can and mix with Neutral air setups for make hudge %
U can trap your ennemy with fake Ball setup and run aways for make your ennemy follow you for jump highter them grrab for exemple and begin neutral air setup.
U need to try to make your opponent off stage for gimp with up B or spike them with Side B ; it exist many frame trap to do in match just look my channel for them.
if you are of stage u can protect yourself with Side B. u can camp ledge too with side B but that not fun. don't forget u got a good wall jump with wii fit .) .
Spam B on Up B make you go highter.
Wii fit trainer jab is not good but could be used on respond at a grab. Ftilt kill often don't forget to used him. Used Down B always when u are safe , the boost is good. and always got a Bneutral 2/3 charged. Down tilt only when u crouch a jab or u got spaced . up tilt only on aerial agression respond.
Questions?