>>536100754
>before ToP he caught up in hours
youtube.com/watch?v=H27oTjUhHTw
1 year* (still insane)
>>536100995
Goku did train Gohan and Piccolo in SS. Piccolo was relative to Goku and Bejita (he was able to take on Android 20). Gohan was slightly behind Piccolo but still able to mess up Android 20.

>>529799742
Goku trains people while he's in the Super Saiyan forms. If Uub's potential is high enough it isn't inconceivable he could reach that level.
>Yeah and he stopped being his student and went on his own after surpassing him,
Uub hasn't fully surpassed Goku. Surpassing his base is only one step in surpassing him.