Font Rail #1
-slopey pinch feel with subtle grooves and bumps. Best on slightly steep walls. Harder on steep.
Font Rail #2
-is more of a crimping pinch feel with more obvious spots to get some purchase. Good for 45 and fun for slightly steep.
Font Rail #3
- has the classic 2x4 stud pinch feel to it. But it's got a slight incut so it's a bit more positive. Awesome for 45 steeps and verticals.