The patent action repeats very well, even when compared to a normal action, but the repetition happens higher up the key dip than in the roller action, so you have to play more outside the keyboard (if that makes sense).
It doesn't quite make sense! Could you explain in more detail?
(And that seems to be my 2000th post!)
To put it in very crude terms, when playing on a Steinway, and in particular the American Steinways - and for that matter the Hamburg Steinways of about 20 to 30 years ago - the point of repetition is quite far down the key, so it helps to keep the wrist a little bit lower, and play kind of in to the keyboard, with more of a kind of kneading motion. It's not actually a kneading motion but that's almost what it looks like.
With the BlÃ¼thner patent action it kind of helps to keep the wrist a bit higher and the hand almost a bit more loose, with the arms more ready to take flight.
There's a lot more to it than that, and my description is almost as crude as to be useless, but I know what I mean.