It’s really not that risky or difficult to execute at all once you understand the mechanics of how it works and the ranges on his low and far fwd.
Once you’ve used his low and far fwd’s enough you’ll just naturally realize when you are or are not in range for them to hit. From that point it’s a very simple matter to just walk back until you’re out of range and set up the os.
As for the mechanics, just to clear up a little misconception in this thread, you’re not canceling out of fwd’s recovery. In fact extremely few moves in this game allow you to cancel during grounded recovery frames. Rather, the point at which the vast majority of cancels occur is during hitstop. You may have noticed when you strike your opponent, either on hit or block, that both characters freeze in place briefly. That is hitstop, and it is entirely separate from the startup, active, recovery, hitstun, and blockstun types of frame data you may be familiar with. The duration of hitstop varies depending on what type of strike occurred. Light, medium, and heavy normals, as well as specials, all cause different durations of hitstop. Light normals create a fairly short hitstop, medium normals create a slightly longer hitstop, and so on. Realizing this, if you do the super os input in one quick and fluid motion, timed properly with the hitstop duration, you’ll do it correctly every single time. You just walk back to build charge (or go from a downback charged position), press and hold fwd, then toward, then back, then toward, then release fwd (negative edge activation). If you do it properly then you only get fwd on whiff and if the fwd hits then the input is completed during hitstop and you get your super cancel.
Hitstop is very intuitive. Many people have no idea how it works, or even what it is, but they realize when they’re doing cancels that there is a perceivable pause when they connect with a move and intuitively adjust the timing of their inputs to match the duration of the pause.
It’s like walking outside and feeling the heat of the sun. A person may not fully understand what is going on with the solar radiation and their body, but they still perceive the energy transfer itself and intuitively understand the basic cause and effect.
Intuition. It’s how a Pro can completely understand the game without truly understanding it at all.
The More You Know.