My gut call would be to use ASA 7.6.H to call the batter out, missed or not.
The rules obviously don't want either of these techniques to be part of the SP game. So should we look the other way when an attempt to use one of them fails? With this said, a failed chop would be a lot less clear than a failed bunt.
If the batter did make any kind of contact, look at EFFECT under 7.6.K: the ball is dead and runners return.
If we want to get pedantic about it, 7.6.H uses "bunt" and "chop" as verbs; but Rule 1 defines each of these as nouns.
Of course, I'd probably get protested. (rookie!!) Anybody think I'd be upheld?
