Please take a look at Jay Darrell Ingleton and his video demo'ing his "fast hands".
First we can observe that most of his strikes are not very fast.
Then we notice that the ones which are fast lack any power.
In general his use of his body below the waist for achieving greater power is almost none existant.
That's why he won't enter MMA. Because his martial art is all tippy-tappy stuff for show with nothing of substance behind it.
He wouldn't make it out of the first round against an amateur (if he ever had the courage to enter).
Jay Darrell sucks.