When X-Factor canceling from the S&S, you don’t even need to super jump to follow up with a combo at all. It easier to do it when the opponent is grounded than in the air.
You can also cancel this move into a hyper combo. The easy way to cancel that move into Hyper Stars and Stripes is to press 2 or 3 attack buttons together before you leave the ground(block or hit)
I would use this move to counter tech throws. Without assists to help him, this is the only way for Cap to get a hit besides throwing. With the invincibility it has, it beats :h: and many command grab. Not sure if it beats backdash with throw option select.
Even when S&S is covered with an assist, Cap and the assist can still be vulnerable to Beam Supers at fullscreen, making it risky.
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Combos off of S&S XFC (Lvl1)**
S&S XFC normal jump j. j. j.:h: dj. j.d+:h: j.:s: land j.:l: j. j.:h: dj. j.d+:h: j.:s: land cr. :s:
**Miscreen **
S&S XFC normal jump j.u+:h: j.:s: j.:h: SS land j.:s: j.:l: SS land st.:h: :s: super jump cancel j. j. j.:h: j.d+:h: j.:s: