Tip from Laranja.
Using ultras like that at high level play usually don't work and result in getting punished it's also easy to read when you're trying to bait them into throwing a fireball, so they just stop doing it. Even if it means getting in easier, Sagat still has tools to stop jump ins and general rushdown so it's not like he can't do anything when he's not throwing fireballs at you.
That crouching HP at the 33 second mark that goes under the high tiger shot. I didn't even know that you could do that. Sexy stuff.
That said, I feel like Ricky and JWong are better Rufus players. Japan has better overall player base but I think that America def better with Rufus and C Viper (but not by much)
It takes a really skilled Sagat to be able to zone that well though.