I thoght i was thwe only one who thoght it looked like styropoam
Underneath a thin plastic shell, it is. On the EXIT gate, look at some of the spots where the plastic is chipped off. It's styrofoam.
Don't worry, Firehawk will go "rust bucket" on us eventually, just like its friends Flight Deck and Backlot Stunt Coaster, and, to a lesser extent, Flight of Fear.
I can't be the only one who hates where the on-ride photo spot is. I never have seen a good on-ride photo of myself, but Diamondback seems to generate some of the most humorous ones.
The sign says "No Groups". Whether that is "fair" or not, it's a park rule that you agree to by entering the park. I noticed the line was consistently shorter when groups were forced to wait in the other line.
Diamondback's SRL seems to be shorter than standby most of the time, but not when the park is very crowded, like this weekend. However, I do think the passes are a bad idea...