This is random, but I've been toying around with Jax midscreen. After a midscreen Ground pound or close Ground pound (or even Neutral jump punch) you can do:
Midscreen Gp: 1 1 1 Overhead smash, ex gp for 37%
Midscreen Gp: 1 F4 Overhead smash ex gp 35%
Midscreen Gp: D4 Overhead smash ex gp 31%
Midscreen Gp: 2 1 Overhead smash ex gp 35%
Close Gp: Njp 2 1 Overhead smash ex gp 34%
Close Gp: Njp F4 overhead smash ex gp 32%
Close Gp: 1 1 overhead smash ex gp 34%
There are obviously other things you can do ending with the overhead splat ex gp set up, these are just some of my favorites/most used.
Edit: Also, good shit. This set-up should definitely come in handy.