I still think it would be better for Goku to have Lucarios FS graphic To make it balanced, he'd have to charge it. Think of it like Samus' B-attack...Charge it, and be able to cancel out of the charge phase.
or maybe edit that GFX to look better since i am abit working on it
btw i will write down my Kid goku Moveset soon so look on 2nd. post for it
(many moves is from that import over Luigi but still some of my own ideas)
like the import´s up-Smash will possible be up-tlit instead and the "B" moves i think will be perfect for Kid goku too (remember it is not GT i talking about since the GT moveset of him is almost a clone of adult goku but afew GT moves like new Side-B:DragonFist and new up-B: maybe same as Gotenks since i can´t thing of something else and kid goku can´t teleport)
for Vegeta moveset i am 70% done with now
maybe i can get it done today