Given the number of cross-training threads recently, I just thought of something that the cross-trainers might care to comment on.

I've always questioned the chi sau training when it came to application. I could never see it actually working (in the "ideal" way I guess) - sensitivity, trapping, etc. - when in the hubbub of an exchange with someone. My main gripe is the speed at which a striking exchange takes place coupled to the mobility that a "standing" person has.

Which brings me to my point - does the timeframe of an exchange get longer (i.e. you get more time to react/act) as you move to clinch, grappling, ground, etc?

Is there another reason why people move to clinch or the ground, other than maybe the opponent is not so well trained in it (if at all)?