Very cool stuff on the Toadstool! Good call on leaving the bolted piton. That seems like the right decision in that situation.
Clint and I were rebolting in the Hanging Valley yesterday.
We put in a 2-bolt anchor on the Wad with quick links and chains. The only bolt on top looked like a very well-placed 3/8" Rawl split shaft. Too bad it was in a very poor location so we took the old Leper hanger off of it.
We replaced the single bolt anchor(3/8" Star Dryvin) on top of Nip and Tuck and added a second bolt with quick links and chains. We replaced the hangerless bolt(1/4" Rawl split shaft) which protects the crux.
We replaced the bolt(3/8" Star Dryvin) on top of the route 'Obvious' on Teeter Tower. We added a new rappel anchor on the east/uphill side of the pinnacle at the base of the balanced ball with quick links and chains for rappel. This looked to be the best place for an anchor especially since the ball looks like it will head west if it goes especially if someone is foolish enough to try to climb all the way to the top.
We replaced the two belay bolts(3/8" Star Dryvins) at the base of The Driver and replaced the anchor bolt(3/8" Star Dryvin) and added a second anchor bolt with quick links and chains for rappel.