Well I went and played around a little bit and decided to see how much these things helped. Needless to say, it turned into me climbing on top of rocks that I shouldn't have been on top of.
A straight rock ledge this size would normally be impossible to take straight-on...
Found some that the narrowed bumper could just squeeze through... the previous pic is of the rock on the driver's side
No problems... took both vertical ledges straight on
Like I said... climbing things I shouldn't be able to
So now I know that if my bumper can squeeze through I can climb a 90 degree ledge straight on.... pretty cool. Front approach is still limited by the tow hooks but once it's lifted with bigger tires I'll have to test it again.