In reply to Chris Sansum: The history of this route is worth a page in the Historical alone (but such indulgences are now discouraged). A few points may be of interest. The remaining peg on pitch 1 is believed to be the FA original. When I sent my draft 1977 script to John Grieve in 1976, he remarked that on a recent visit he had been 'surprised to see his partner's home made peg still in situ' (but this could have applied to a lower peg in the left wall, long dispensed with). I am almost but not 100% certain that it was not removed and replaced in the short interval between then and my cementing round it a couple of years later. I did the route several times thenabouts, including my first solo of it in 1978. This peg was implied to be an aid peg in the 1965 GMC guide and has often been used as such (I witnessed an occasion only six weeks ago!).
The first peg on pitch 2 (protecting the nose move) also definitely predates 1975 and may be quite a bit older. I placed the sentry box peg in 78 (having recommended its use in the 77 guide) along with the pegs now at the belay. The early descriptions of this climb appear to advocate a poorer finish further left avoiding the sentry box. The intermediate peg appeared in the early to mid 80s. I did not cement it, or mention it in the 87 guide, as I regarded it as something of an interloper and assumed that I or someone would remove it. However, it was well in and has become accepted as a fixture. The moves between it and the sentry box are not hard, but some people are still shaking from the exposed step out and welcome the assurance it gives.
So this one might be 30- years but all others are 30+. To qestion whether they are sound is like asking how long is a piece of string. The crux is, are they likely to do the job they need to? Probably but not definitely – i.e., they may well hold a small fall or provide secrity to grab in an emergency; they are certinly not to be equated with 12mm SS bolts. However, there are no alternative natural gear placements and it is unlikely that replacement pegs as good (or anywhere near) would be possible. The whole topic of peg degradation and replacement was given a good UKC airing recently, more specifically in relation to Avon.
For all this, the route remains one of the best, probably the best, of its grade in the Wye Valley.