The only questionable hole I saw given on last Saturday night's card was in the 5th race, when Callahan let a hung-for-his-lungs 14-1 Varsity Hanover into the pocket past the 1/4. But he immediately took his horse to the front and jogged; seems like a tactical move -- and a good one-- in retrospect.
Any driver that gives a tuck, and does not immediately either 1/4 move or pull to the outside should be immediately fined. I agree, if drivers do what Callahan did, it's a great move because many times they regret not making that move when they sit in and get hopelessly boxed.