Again generally I use hard for mid screen combos and light or medium for corner. The reason you(or well at least I)use medium is to get them a bit higher so you can do the hurricane kick loop or something to that extent.
Anyway yea I dont think ryus dash is fast enough to get a triple wave dash in, after a thrust kick… but besides that you only need 2 at most anyway that ive seen. Also note that doing a sweep to roundhouse thrust kick makes the mid screen combos harder in general I find. Which kinda goes against common sense… at least to me. You’d think that knocking them higher and then hitting them would…ah…make it easier… but they just don’t seem to work…
A single wave dash to duck medium or stand medium works against a large portion of the cast as long as YOU yourself are not like near the corner. Other wise yea in the few real times ive played the game its pretty easy to just do combo to thrust kick mid screen single wave dash in duck medium or stand medium depending on character. Although note that although this is a pretty brain dead way of thinking of things, generally going this route you have to just do duck medium, sweep, launcher. As the roundhouse wont hit. So you lose a bit of damage. But its a pretty easy/damaging combo besides that. And again works on a large portion of the cast as well as long as you aren’t in the corner. Other wise better to just stick with double wave dash jab. But again be wary of using sweep, as it has a pretty huge hit buffer on it apparently, so if you go into that from a assist hitting, it can be awkward…