In reply to domainsley:
Hi dom,
Thats a big question, the answer could fill a book (it does and you need to read them)! Short answers already given above, continuous loop,silent partner and 10 - 20 teams on the Nose in peak season spring and autumn. First up go read 'road to the Nose by Chris Mcnamara ' or Andy Ks new book on big walling. Spend a fortune. Learn how to do that close to home. Go do a big wall. Then read Andy K's 'Me Myself and I '. Spend more money, buy a Silent Partner if you can (not made anymore, £400-500 on eBay) or use different device. Practise a lot, get super fit. Do challenging things. Spend long days carrying heavy stuff to go do scary things on you own. Think really hard about do you really want to do the Nose as you are going to be very unpopular at peak times and will be in everyone's way and you will also loose huge amounts of time as you are overtaken. Or do it at night (more dangerous) or pick another route on El Cap - Zodiac? Read, read, read, practice, try everything, read some more.
That would be a summary. Good luck!