I get a little tap, on occasion, but alot of that depends on where the bow wants the brace set with the particular arrows you are shooting at the moment.
Wrist slap, in and of itself, does not mean poor form. It's one of the nuances of Hill style bows. We're built differently with varying bone structure, to some degree. I cannot extend my arms to a straight elbow. I have a slight bend even when extended fully. Some can extend their arms past a straight elbow to an inverted elbow joint. Hence, some of us get wrist slap and some of us don't.
Arrow flight and being on target are more important than a gentle or moderate tap. A full on welting slap means something probably did go wrong.
We each will have different findings as evident in the responses to the OP; including mine.