IMHO, where 7-1-2 allows the snapper to lift the ball for BACKWARD PASS rotation, asking is not needed. Often you have four snappers per game , including those that snap for scrimmage kicks. IMHO, just spotting with the laces straight up (like my bourbon) will be all that's needed.
Of course my opinion is not always correct, as per....
AATROS RULE....RED SOX SUCK
(4TH POST...1 TO GO note: it seems the "L ...word" is replaced by "Backward Pass" . The actual word can be found under 7-1-2, 7th word,1st sentence.