if I may?
A brief interuption....
I really don't want to get into a discussion about what techniques are "useless", I would just like to make a comment.
It appears to me that not everyone on this thread is talking about technique when giving examples. So, it may serve if someone takes a step back and clarifies things.
For what it's worth, I would say football players pushing a blocking sled is a conditioning drill and choosing use the "fetal" position in a multiple attack situation is a tactic. I would say hanmi handachi and sawari waza are training methods, at least in the context of modern US culture. At least that's how I see things.
Sorry for the interuption...