Never base your firearm purchase on what a pro uses.
They're:
1. Getting paid to shoot the gun.
2. Hand-picking the sweetest one out of dozens offered up to them.
3. Have multiple ones - so if one breaks or burns out - they just grab another.
4. Modifying it in many ways - within the rules, of course.

5. Shooting hundreds of thousands of rounds through them.
If you must use someone as a standard - look to the top 10 at the Canadian Championships.
Most of them have to pay for their gun and don't have the luxury of training every day; they have jobs & families to support like the rest of us.
They make their decisions based on what can give them the best advantage within their budget
Right now, in production - that's CZ Shadow variants and Tanfoglio Stock variants.