I am still befuddled at why people try to short-cut or braid Gear Jammer. It's such a short decent anyway, why make it shorter? It's a blue trail. If you want harder, there's way better places to ride than braiding this trail.
Another place is right at the top of Lower GJ where it comes off Mel's. People are wanting to "pop" off that little mound that separates the left and right entrances to Lower GJ. Problem is, there's a very new and very important drainage channel and corrugated pipe now installed there. This is because that mound seeps and produces ground water during rain events and was washing out the trail. This drain has SOLVED that problem. But when people are removing the logs and wood that is placed on the mound to stop them from entering this way, they are destroying the drain and will subsequently wash out that corner again. Furthermore, in order to roll in faster, a new "start zone" above Mel's has been created, further damaging the area. I'm sure this doesn't help the mtb community look great in the eyes of CoB.
That said, GJ is running well. Drainage seems to be working and has held up, especially through the last bigger rain event (about 3 weeks ago). Since that time, the upstream flows from the drains and culverts have been flow reduced as well, reducing peak and storm flows toward GJ. We should see less overall water on the trail. I think the final place that will need some attention is right after Hoots' Hump/Jump where there is a perma-seepage of ground flows. I think further enhancing the new alignment left would be great, and then more permanently establishing a drainage channel on the right. The work that has been done seems to be working, but could be enhanced. Perhaps it's a bit of a "test" before committing to further work?
