After his second rock back, but I feel the windup loses it's pizzazz either way, should never call a balk in a windup, I believe that tweet source is wrong, or baseball has collectively lost its mind. No one would be on base in this instance.... *smh* If true. Also in a wind up doesn't matter on the clock as long as they don't deliver, which is a balk.
Missed your edit, on the latter.