I'm putting this in the comments, as it may not be seen easily otherwise: One of my students wanted this to help him remember a padwork combo. It's a simple (in ortho) 1 slip left 5 (uppercut) then STEP and bob under to left followed by a 3-2 then bob under right to a 2-3 (then pivot out with jabs). The reason why it is key is because guys get their feet locked into the mud. This forces you to fire that left uppercut with your weight on your left foot (and it could easily be a Mexican shovel hook to the body) and then still take that step to bob under to come up firing. If you get used to this move (which may seem awkward at first) it will be a first step to opening up inside fighting where you slip, fire uppercuts (and not only) but still move your feet. Also, that move (if you work on pads) teaches you to bob under but come up with a quick left hook to the head--which means keeping that shoulder lose. TIP: I teach a palm down hook. A palm in hook is going to be slow and hard to throw on something like this, but a palm down will be quick and have snap.