Nothing like spending Good Friday walking around with a pair of binoculars and working out just where the big lines go. If you put in a few hard yards planning you might just get up a big route or 2. They are not impossible to climb, they are acually fairly obvious and on Bluff certainly there is excellent wire nut / cam protection. I have not yet found a single 'old bolt' belay that could not be backed up with multiple bomber nuts. Even the belay at the start of the FotP traverse needs no bolts if you know how to place gear. The bolts are handy as route markers however & one wouldn't go astray as a runner on the 'crux' pitch of Elijah ...Be very careful of the Friend & Colyvan guides. They are not necessarily wrong, just open to interpretation.