Using a sample size of 20 bets in basketball where the hook is involved betting 55 and juiced to 60. I had 5 games that pushed which save me 275 if I would have left the hook on. Say if your a 55 % capper and you go 11-9 your only losing $45 in juice from buying the hook. You only need 1 push to make up for that.
As tight as these numbers a lot times the hook comes into play during these games.