In reply to anaesthetic: As I recall, even on the routes which have a bit of a dogleg, a 50 will just get you to the top ledge while your partner is stood at the foot of the slab with very little left.It may be prudent to keep back a couple of longish slings for setting up/equalising your anchors etc. On the central line, your partner may need to shuffle up R a bit, to slightly higher ground at the foot of the slab, to give a little extra slack for finishing.