The easist way to get there is:
Follow CR route to Reigate.
Go through Reigate but don't turn left at golf course, stay on the A road.
Follow this all the way to Deepdene roundabout - you'll know you're there as you'll see a giant silver cock in the middle of the roundabout
.
Left at the giant cock - this road rolls up and down a bit but not much.
The next roundabout is the one at the bottom of the 10 course so take the first exit and you are on Spook Hill - the start of the TT, and where the numbers will be is at the other end so just follow it until you see Joyce and co.
[url=http://maps.google.co.uk/maps?f=d&hl=en&geocode=&saddr=Coulsdon+South,+Coulsdon,+Greater+London,+United+Kingdom&daddr=51.281031,-0.155182+to:Spook+Hill,+North+Holmwood,+Dorking+RH5,+UK&mra=dpe&mrcr=0&mrsp=1&sz=12&via=1&sll=51.258048,-0.163078&sspn=0.156845,0.299377&ie=UTF8&ll=51.237202,-0.211487&spn=0.156916,0.299377&z=12]Map[/url] A bit longer than the default it gives you but easier to follow and flatter and faster roads, rather than winding about up and down hills and back roads.
Leave an hour to get there and you won't just arrive in time to get pushed off
.