In reply to rustaldo:
Does Main Cliff lend itself well to 'logical enchainments'? I think for a really big day, you're better off going for the second option of abbing back down before the rambly upper pitches. Not as satisfying I suppose, but you could get a few great pitches done on the trot that way. I'm afraid all I can help you with is that after the 2 amazing pitches of Assassin you could ab back down off the massive ledge with the blocks to Nightride/Scavenger/Mestizo etc.
Something like this must be possible in Easter Island Gully too. Great routes (I've only done Hombre, thinking for a while it was This Years Model), but with so much steep grass between the climbing and escape, it's surely worth doing some sort of up-and-down-link-up? What about linking something down there into an ab down and traverse onto the LH side of Main Cliff (Mestizo maybe)? I'm not sure it's a goer, but I think the Gogarth North guide will tell you (or you could pick a nice low spring tide and try).