QUOTE(piano*cello*sax*boy @ Dec 28 2008, 09:55 PM)

Thanks will get on with that, by normal tension do u mean tuned or just have tension in it?
Tuned up to normal pitch, not just a bit tight. Give it a stretch to make sure it will stay roughly at the right tension while you change the others. The bridge is under a lot of pressure and you're trying to minimise how much it changes by normalising one string at a time. If that makes sense. I mean it's not vital for each string to be exactly at A=440 before moving on but not a bad idea if you're a bit worried about doing it for the first time

Just go for it.