In reply to Ed morris:
No, they are a pain in the arse, imI believe many routes were put up with 100 foot ropes.
I have climbed on Gimmer with 30 mtr Halves no problems.
When you have 60s it takes ages to pull them in and you end up in a nest of ropes.
Some people say you can run pitches together, but I am never really sure why they need to.
Get 50s
Ps, why buy a pair, buy a 50 and a 60, that way you can match your partner, though a pair of matched ropes us a joy.
Post edited at 15:04