Hey guys, if you're like me and usually find the "dash, 1, dash, 1, dash, combos a pain in the butt, I've found a pretty good alternative:
b1, 2, 1, dash, 2, 1, dash, f4, nomad dash, jip, b1, 2, 1, dash, f3, 2, tornado slam = 36%
The important thing is that the "dash, 2, 1, dash, f4" part of the combo almost always (I'd say 90%) leaves them at the right height for them to be grounded while spinning from the Nomad Dash. It's really not that hard to do. After just a few minutes of practice, I was able to start landing it about 8 or 9 times out of 10, and it's only gotten better. Interestingly enough, the key is to NOT do it too fast. Don't hammer out the command as soon as you input each dash. After you practice it a bit, you'll start to notice that you actually have a little bit of margin after each segment in which to input the next attack. This can feel weird at first, but it makes it much easier in the long run.
Edit: And, of course, you can change the ending from (f3, 2, tornado slam) to (2, dash, f4) and the damage drops to (if I remember right) 33-34%