Alternate Access if the abseils are swarming with guided groups-either walk down Devil's Hole (pretty but hard to find the start) or rap down off 2 Ubolts 3m west (R facing out) of normal rap anchor (straight down pitch 4).
Then go down the gully for a few meters and walk/traverse out on right wall and eventually find the top of P3 (i.e. reverse the normal route). Leave a long cordlette on the Ubolts to get the screwgate over the edge and rap the route. Either 3 raps or it looks like you can join P3 (35m) and P2 (25m) in one 60m rap, then P1 (40m)- I haven't tried so take 2 x 60m ropes (or longer) and prusiks.