In reply to TobiAuth:
We also did this a few weeks back. Didn't have rope drag problems on the final section.
We simply abseiled back down from the shared bolt belay at the top, then down to the ledge on sol solet (just right of the tree belay on princesa) then down to the anchor at the top of pitch 2 and straight to the ground from there. When we did sol solet (a much better route by the way) we came straight down the line in 3 long abseils.
There is a bit of a runout at the start of pitch 2, but the climbing is pretty easy, and you could always link the first two pitches if you were worried about a harsh fall.
What bugged me about it was that it forced an unnatural line on p2 rather than the line of good holds about 2m left of the bolts. Either way, do sol solet, it's way way better.