We had discussions on whether it's possible to react + regrab, and concluded the answer is no for spacies, but what about in Falcon dittos? It seems really.. REALLY easy to regrab tech chase on reaction in dittos. Assuming the opponent always techs and doesn't do optimal away DI, I'm willing to bet it's guaranteed
Definitely possible. The margins of error are the same as Sheik has vs. spacies, and it's accepted that Sheik can do it, though it's difficult. The main reasons that it's worse are that they can DI farther away from your throw than from Sheik's, and you don't have a reaction techchase that launches them at mid percents.
Like BigD said, the difficulty on Fox is the same as it is on Falcon. Fox's techrolls are really, really short, and the tech in place time is pretty much the same among all the characters. Falco is harder but doable.
I think the reason people think Falcon is easy to reaction techchase is because not every Falcon player buffers rolls when they tech in place, letting you get away with being a bit slow, while most Fox/Falco players will shine immediately. But seriously, it's the same margin of error.
pretty guaranteed if you up-throw and you are next to them when their body hits the floor, very easy to react. Up-throw is good cuz it gives you more time to prepare, doesnt matter if it is 'slower' overall
the flaw to grabbing over and over though, is that on smaller stages they'll eventually escape through the edge or use plats to escape up-throws so you have to use the slightly less reliable d-throw
Yea, it starts being less good at mid percents if they always DI away cause then they can get to the edge pretty easily. But at low percents they can't go as far from your throw, so if they start going to the edge you can get them in the spot where you throw, they DI away but don't reach the edge, and if you guess the techroll towards with knee/stomp you still get to cover missed tech/techroll away cause the edge cuts off their roll away. Run through them -> side B towards the center of the stage also gets a lot better in this position.
But yea getting reads is definitely still necessary because of what you said.
also, unless I do the be next to them where their body lands technique, I simply can't regrab tech in place in time
You can pretty much always do the "be next to them when they land" though if you just react to their DI. If they DI slight away, walk or wavedash. If full away do 1 dash, if behind turn around in place.