Can’t really compare these pros to what most trail hacks do on weekends though. The fastest trail rider may still not be a decent racer, it is a mindset as much as anything else. It depends what you want from your riding. Me, I’m a surveyor, and a pretty good one if I do say so myself. I’d like to see how any of the top 15 riders in the A4DE go when handed a reflectorless total station and a hand-held disto laser measurer – but then again, my riding is about equivalent to their surveying skills. 
I think most trail riders ride for fun. When it is a way to make a living, or even just as all-encompassing as being in the top 15 A4DE riders, the fun factor takes a back seat to the professional rider inside.
In my opinion, trail riders should ride the bike that gives them the biggest stiffy. Pros, well they can ride whatever they bloody well like!
For me, a 250F is the go, but many others prefer a 300 2T, or a 450F, or a 390F or… well the list goes on. Size of the bike isn’t the main factor for trail riders, it is all about the size of the stiffy! :silly: 👿