My taiji practice has involved lots and lots of standup grappling, done if not quite all the way live then in an amazing simulation. We call it "push hands" and "moving push hands" and do plenty every class and also pretty often when we see each other socially.
So yeah, if the guy is strictly a ground grappler (this seems highly unlikely but whatever) the answer is defintely going to be outwrestle him standing up so you don't have to get in his element, as has been stated and restated on the thread already. And frankly, yield then issue would seem to be a big part of that - but there's about a million ways to yield, depending on context, and same goes for issuing so RPs response really does strike me as vague and jokey as he claims. MPs response is correct, too, since if you aren't used to using your taiji against a determined foe, you are going to get hosed.
All that said, "pulling down" energy is probably a promising way to deal with a leg takedown attempt. Pulling down basically means backing up and directing your opponents already downward energy further downward. Sound like a sprawl? I think maybe it should!
All my fight strategy is based on deliberately injuring my opponents. -
Crippled Avenger
"It is the same in all wars; the soldiers do the fighting, the journalists do the shouting, and no true patriot ever get near a front-line trench, except on the briefest of propoganda visits...Perhaps when the next great war comes we may see that sight unprecendented in all history, a jingo with a bullet-hole in him."
First you get good, then you get fast, then you get good and fast.