Not sure why this happens but it seems if you block low for the first hit of 113 (its a high, so it whiffs) you lose a lot of advantage on the trait cancel. I have no idea how or why this happens, but check it out, it takes away sooo much of the advantage.
Imo too much can go wrong with the setup mid screen without the opponent even knowing what they're doing. Batman's j2 is so good for the opposite reason - both players have no idea what side he will land on but it doesn't make a difference to the batman because he'll just do a non-directional string into trait cancel into pressure, or the opponent will get crossed up and launched lol. There's just too much character dependent stuff, and even if you have it all in muscle memory, the other guy could arbitrarily block low for the first or last hit which causes you to lose a bar and/or get punished.
If the mid screen stuff works for you, go for it. The corner stuff will be better for my play style, as I like to play safe and slow footsies and punish mid screen, then go full PL once I get in the corner.