Rainman will be repeated before Mutation in my (complete arse on armchair) opinion.
Arenít a few people close to Mutation? Pete & Will?
Not Sure how close Bosi is or was, he gets to try very rarely, I do know he thought the crux was nails though, mutterings about harder than Practice of the Wild.
Pete hasn't done the boulder in one yet, how hard do you have to climb to get there? So not that close I guess that would mean, to be close surely you have to be on redpoint? He's a monster though and his drive to do something once it's on his radar is totally unrelenting.