There's the rub.
Hitting an IDPA 8" circle from 5-10 yards isn't a particularly demanding accuracy issue.
There may be people like JodyH which can shoot to a high standard with XS, but my experience is that those people are extremely rare.
In a Frank Proctor class years ago he told a student who was struggling to hit the target at 10-15 yards to straight up ditch his Big Dots.