When I did run studs, I had the tougher 60 degree studs against both rails. As I got further away from the rails, I put in the sharper studs to help with penetration. Ya usually don't have any penetration issues close to the rail. The 60s (or a higher degree) are a good compromise for the studs next to rails.
I've never run chisels & picks. But I'd probably put the chisels next to the rails.