After landing F13, a better 50/50 mixup would be with instant overhead NJ2 (which can be followed up with 12, TS) and B22. The NJ2 combo does 38% and the B22 combo does 39%. For comparison, going low with F1, TS does 32% and landing the overhead from F13 does only 7% and puts you back in the same 50/50 mixup that you already earned yourself in the first place. It's also possible to pushblock the F1 to escape the mixup.
B121 after super is a huge pain to do. I probably won't attempt it in a serious match lol.
B121 after super is a huge pain to do. I probably won't attempt it in a serious match lol.