I think I can lock the suspension. I think. I've never actually tried it. There's a fairly generic track nearby, which I could test it on. That's a nice idea, I'll get out the manual and see how I do it.
The other appeal would be getting a upgraded fork for a larger brake rotor, as a heavy man with a heavy bike, I'd really like that extra security going down some of the steeper, twistier descents.