hmm, first of all, I think I remember a lot of ledges and blocky terrain on route. I don't think there are many places I'd want to take a leader fall, unless it was very short.
I can't remember, but I think that slab at the top has a fairly safe landing -- meaning, I don't think it would kill you. But don't fall.
If your bro isn't up to it, you can always climb up and lower him a top-rope.