I bet Roshi was secretly working in 17's island or he trained with Frieza before ROF , or with Piccolo after the Champa arc, or all together, and that way he archieved a higher power than Tien, who never stop training. Its the most logical reason. That or as Goku said he never used his full power. Roshi, you bitch!
Since her brother could sense Ki, I suppose Caulifla can too, but she wasn't afraid of SS Cabba. Interesting, is she U6's Gohan?
Ki Breaker wrote:I will say it one last time, the anime events can't be ignored and considered filler, the anime is the full continuation..
canon argument is pretty up in the air due to various people liking various things that it's ignored there is an obvious unspoken canon which the writers follow..
I am done with the canon conversation
I seriously doubt the anime staff if following the original manga version when Gregory and other filler characters exist. And the original manga is the only thing that can't be considered canon. Definetly the most «canon» version of Super is the manga, trough any of rhe two is really canon if by «canon» you undestand «written by Toriyama» because in that case the canon stopped with ROF. If you are speaking about the anime continuity, then yes, there is not filler, but with canon people usually refer to the manga one.
English is not my first language. Please excuse my gramatical mistakes.