The second, of the two, bolts on "No Smiles" on Smiling Simian West Face has been replaced with a
3.75" stainless steel double wedge bolt and stainless steel hanger.
Normally I wouldn't place a wedge, but this is a double wedge, so there are two contact points, much like the Powers, and the rock quality was pretty good. In addition, it was the only long SS I had.

So I chose long and SS over more potential contact with a carbon steel bolt and carbon steel hanger.
I didn't have the juice to hang in my harness for another bolt, but the first one looks like the hanger is one of the thin SMC style.
The old bolt was a compression bolt in pretty good shape. It took me an hour or so with just tuning forks to get it out.

The new bolt
