T.O.D.,
I have read your post here and some others through this thread.
I have to disagree.
Going slow so others to see you and correct you I agree with.
Going Slow to learn a new technique is also good. I mean if you walked into a FMA school the first day and they pulled out a real sword or a training sword or a rattan cane and handed it to you and grabbed the equivalent for yourself, and then went fast and at your timing with the student not knowing anything, then someone is going to get hurt possible seriously and the student learns nothing.
Now once a person learns it slow, and the proper timing of the situation then slowly increasing the timing and not going ballistic right away is how one gets faster and eventually fast.
Note: being Fast does not make one on Time with their technique. they still could be late or early. Neither gets the desired results.
So as written, I have to disagree with with you.
If you meant (* and maybe you have clarified and I did not browse that message - my apologies if that is true *) that going slow only is bad. Then yes I see that as being true. Yet that is not what you wrote. You said going slow adds no benefit or actually you stated it does not help at all with one exception of being able to be corrected.