Pro players tend to get bats sent to them direct from the manufacturer or distributor, then they will select there favourite ones for matches out of around 7 bats, they will use the others for practice and have as backup in case there match bat breaks. A lot of pr players will visit factories whilst touring and will pick bats off the shelf that they like the feel off.
So pro's don't always get the special treatment that you might think. You guys on here probably get looked after by the forum sponsors better than most pro players. It is not always the bats these guys are just the best at what they do. Seen a lot of overseas pro's using what I could only describe as planks, and the ball would go miles.