It's DEFINITELY got a huge local component.
Compared to locals who use Strava, at least, I'm VERY mid-pack when it comes to speed (this seems to be one of those places where speed is generally prioritized highly by many locals). That becomes apparent when I show up for a group ride with folks who have a very wide range of skills. There are just some guys who could drop me on any bike, any time. But there are also probably just as many riders who have the same difficulty keeping up with me. Most riders tend to stay within sight, either in front of or behind me. I frankly don't care enough about going fast to work that much harder on it. But when it comes to technical skills, I'm better than average. That said, I've still got plenty of room for improvement. And that I do care about.
Cornering is something that all riders here have to work on a fair bit. There aren't a ton of trails where bermed corners are common. We have fewer than 10mi of trails that really feature more than one built berm. We have a lot of flat and a fair number of off camber turns. Hardly any true switchbacks, though. But our trails are extremely twisty. Some of them are wide corners you pretty much have to pedal through. Some are really tight. There's one trail where the wheelbase of my bike makes the tight turns really tricky. So I would say that locally, an average rider can corner pretty well in general, even if that average rider could still stand to do better.
One thing we don't have a lot of are rocks. So skills necessary to negotiate tricky rocky sections of trail are a lot less common in the general population. I really like rocks, so the skills necessary to ride rocky stuff are things that I like to practice and session on the trails. There are still things that are tough to practice. Riding down ledges isn't really a problem for me. But riding up them is a really major area I could improve. But locally, I really lack for good places to practice them. That became really obvious on my recent trip to Las Vegas. I rode LOTS of ledgy trails there. I was MOST of the way there with the skills, so my other skills did transfer a good deal. The biggest thing I was missing was related to the necessary pedal position and getting my rear wheel up to the top of the ledge. I would approach the ledges with my pedals perfectly level. On bigger ones, I'd get well up onto them, but when it came time to give my pedals a little kick, move my body forward, and lift my rear wheel, I wouldn't have enough space for that pedal kick. My pedal would hit the upper side of the rock. So while I was there, I started working on raising my leading pedal some as I approached a ledge up. I was only there a week so I didn't have enough time to perfect it, but I did make notable improvements in that department before I came home. I'll have to build backyard obstacles if I want to practice at home, though, because there is nothing like that kind of trail feature here locally. We have logs over the trails, which are different in some respects. I have been working on getting over bigger logs lately. Stuff where I lack the BB clearance to just lift the front wheel and ride over it. That skill would transfer over to ledges quite well, but I'm just not there. At least, not for the height of the ledges I was working on. I'm at about 1ft for the logs I can reliably apply this skill to. The ledges I was working on were in the 2+ft range. Again, I need some backyard obstacles, I think.
Just yesterday I was doing some playing around. I was at a shop nearby (the owner has contracted out with me to make a map and I was down there talking to him about a recent draft), and he and his employees have built some obstacles amongst the landscaping around the shop. So the owner and I grabbed a couple of demo Santa Cruz 5010's and were riding the rock walls around the flower beds and the pond, playing around on the little jumps, trackstanding, and whatnot.
I'm excited for the bike parks going in locally to be able to work on some of this stuff. A small one got built last year. I haven't visited yet, but it's got some berms and a few wooden features. Two more are being built right now. One is being built by the local police dept and is geared a little more towards kids, though I expect it'll be just as fun for adults. It's getting a pump track and some skills obstacles. A bigger one is being built about an hour and a half out of town on some land that was strip mined and is now owned by the county who has decided to build the bike park with a strong focus on progressive features. It's going to have roughly 16mi of trail, and will include a pump track, a separate kiddie area, space for jumps and bigger drops, and stuff like that. That one really looks like it'll be a place I can practice/learn things. I have a couple of friends who are certified mtb instructors who are giving a skills clinic there when it opens.