I usually double check and see if there's something I'm missing, injury I was unaware of, change in weather, etc. If none of those things have changed then I go with what I capped.
The worst are horse races. I cap a horse and expect
odds of somewhere from 4-1 to 6-1 but at post time he's at 12-1 or more, I really want to start second guessing. That hesitation has cost me $ before though. The worst was a time I was at the Vegas Hilton cappin the next race at Keeneland. Cap the race and there is only one horse that stands out, compared to the rest should be an easy win morning line was 4-1, but I expect him to be the heavy chalk and lucky to get 3-2. I look up and see he's currently at 18-1, WTF! Instead of going straight to the window, only 3-4 minutes to post, but I stop and re-check the PP, thinking I must be missing something, but still looks like the only play. I rush to the window only one old guy in front of me, but the old guy has a million stupid questions, I'm getting real impatient and try to get the teller to ask the old guy to step aside but no such luck. The old guy finally places his $5 win bet when I hear the bell and "They're off!" I let out a few choice cuss words and the the teller apologizes and asks me to keep my voice down. I'm sitting there with two C-notes in my hand and see the horse went off at 23-1 and wins the race easily 6+ lengths under a fuggin' hand ride. If I hadn't stopped to double check myself I would have gotten to the window just before that old guy, still burns me up.