Opposing horses can be just as profitable as supporting them provided it's done in the right way.
And the one to field against today is hot favourite Killer Instinct in the 40th John Smith's Cup at York.
Fraser Carey's form has been at around the nine furlong mark but without winning. A bigger stamina test could be the key.
Henry Cecil's charge is set to go to post as short as 2 to 1 for a competitive handicap with doubts surrounding his attitude and stamina.
For whatever reason, Killer Instinct has failed in a major way to live up to the reputation which saw him ante-post favourite for the Sagitta 2,000 Guineas before he had even seen a racetrack.
The one to tackle him with is Tissifer, who failed by three lengths to give a Royal Ascot Group winner 9lb in May, and available at a price roughly 10 times longer.
Successful twice from three starts as a two-year-old, including a victory over subsequent Dante Stakes scorer Salford Express, Tissifer made a successful reappearance in the Thirsk Classic Trial in April when beating Peculiarity by two-and-a-half lengths.
Royal Result can land the Beck's Bier Handicap for in-form handler David Nicholls.
Haami has a touch of class and can take the Listed Michael Page International Silver Trophy at Ascot.
Rudi's Pet has gone up 12lb in the weights for his authoritative success in the Gosforth Park Cup at Newcastle last time out, but even that hefty lift should not be enough to stop him following up in the Ladbroke Handicap.
Gary Stevens stepped into the fray at York for the first time yesterday and secured a double with his first rides. The American enjoyed his outing on the Knavesmire as he guided home Samara Song and Imperial Beauty.
Samara Song was delivered with perfect timing by Stevens to catch the well-backed Pas de Memoires near the line in the Hearthstead Homes Handicap.
Imperial Beauty, back in action for the first time since the 1,000 Guineas, soon took charge in the Stanley Racing Summer Stakes. She quickened well to take care of Pipalong by one and a half lengths in the Listed event.