Scooter,

what the P210 gives you, besides mechanical accuracy, is a great trigger that will improve performance. There is a point of diminishing returns involved, though. Shooting a handgun without optics is what I had to do to compete successfully in UIT and military pistol matches and there are few people willing to learn the basics of pistol marksmanship and practice enough to become proficient.

There are plenty of 9mm handguns out there that are sufficient for ever kind of shooting but high-end competition - and those often have other issues when it comes to practical shooting.