I F1 is straddling the mound, with his hands apart, then engages the rubber while his hands are coming together I don't see a thing wrong with that.
If the hands join even before the foot contacts I don't have anything.
The stretch/or motion to come set is optional, just, if a motion to come set, it must be smooth and continuous.
But if the foot engages, and the hands come together or are already together, as long as there is a stop, then F1 is in the set position, and must be very careful about any other motion/s.
I got nothing.
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SLAS
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