Early September is almost over. Are you going this weekend? Is it going to be organized on your own, or part of an event? I went on my own in late August of last year, and my thread about it is here.
I’m not sure how helpful that thread will be. I had gorgeous weather the two times I went to Wuling last year. I made sure I only went when the weather was forecast to be nice, but I’m not sure if you have that option.
Edit: Now I see that there’s an event on 9/12.
solomo.xinmedia.com/bike/events/detail/2035
Just watch out for those people who swerve a lot when riding uphill. I know I’m guilty of that when I know that there’s nobody around, but some people do it even when there’s plenty of others around, such as in this event.