Hehe, I had a 'green' ranking for my Chaotix overall time before I posted that.
That spiderweb, I found a 'trick' I guess. You gotta be good at controlling jumps though.
If you don't jump at all, you'll go from one side to the opposite side. So, to get to the one up and two torches, go on the rail nearest it (on the left as you enter) and jump over every turn off. You have to jump without pressing a direction, then press forward to go over the turn off. Then, you can just ride it easy to get to the switch and torches. Then do the same to get to the exit.