"true ability" is correct and can be used in written English.
You can use it to emphasize someone's real or natural ability, or their skill level as opposed to their knowledge or experience. For example, "She had a true ability for in-depth research."
Clearly, neither man's true ability will be known until the opening is there for them.
"A true ability to eat at fine restaurants and stay in fine hotels on someone's dime.
I think the efficiency numbers don't properly gauge its true ability.
Rule 157 specifies that a rider's actions must be taken "with the intention of concealing the true ability of the horse or affecting the result of the race".
Whether he bought into MLS or not, regardless of all other factors, the 36-year-old never demonstrated his true ability Stateside.
Are standardized-test scores, on which many schools rely heavily to make promotion or graduation decisions, more indicative of true ability than a ballplayer's weekly average?
"Wow, Furyk, Blixt, Bjorn... a lot of people forgetting their true abilities," opines Simon Farnaby.
When this happens, I emphasize that standardized tests will never reflect a dyslexic's true abilities.
I think what will sustain Ben's passion now is having opportunities to show his true abilities as a director and an actor".
Even at the front end of the grid, once Vettel has won the title some drivers expect him to drive differently, demonstrating to fans his true abilities.
For one thing, we should replace high-stakes, one-shot tests with the kind of unobtrusive and ongoing assessments that give teachers and parents a more accurate sense of children's true abilities.
