vs. Q, Elena and Necro you don’t need to kara the second jab Shoryuken. out of those 3, Q is the easiest to hit. you can even do s. strong, s. fierce x jab Shoryu -> jab Shoryu.
it won’t link. it’s a juggle. and if you execute it properly and if you’re within reasonable distance, then yes, it should connect 100% of the time. i first got it to go using c. forward, but i use c. roundhouse more often.
the only useful visual confirmation is that you juggled someone not named Q, Elena or Necro with 2 jab Shoryus outside of the corner. it’s pretty difficult to accurately gauge if you got it right or not if you’re not attempting to juggle someone.
vs. certain characters in the corner, you still have to kara. Yun/Yang, Oro, Dudley are a few of those. if i recall correctly, even kara jab Shoryu will not work on Alex. he just falls weird.