In reply to Baron Weasel:
Thanks for that. I've only the 15m line so that probably won't work.
Not done a highline before. I had a look at possible anchors the other day and thought it looked alright (big block in between wellington crack and stomach traverse, and another set back higher up). Was planning to use some static rope with steel krabs to anchor. Also maybe a separate backup rope taped to the bottom of the line. Need to replace my ratchet with a pulley as well.
I'm pretty happy with my hanging belays, but have some practice to do before I'd rig a highline. Will obv try all this at low level first.
Possibly all a bit moot right now as I've only recently got back into slacklining in any amount. Just thought Ilkley would be a good summer project