Useful advice, thank you Pete.

...and, re-reading the above, it would appear that the experience of WellyJen shows that yes, single wheel pulleys run rather slower on this line and probably do not present an issue, whereas twin pulleys can run very fast.

Our party all had twin pulley systems, mine is the high-efficiency Petzl item. So: Mine may have been marginally faster than the others - but all three of the advance party were coming down at very high speeds , then we worked out that the rope was the best solution for controlling speed. I...

Thanks all for your opinions - I accept that one must acquire experience to adequately understand the hazards. However, in this case, the hazard only becomes known once you are actually experiencing it. I have done a number of zip lines, this is my first experience of one that tried to...

Thanks all, for the replies and the discussion. My feeling is that the line can be used safely, one simply needs to understand 1. That the line is dangerous, 2. What the danger is, 3. What the remedy is. It would not hurt (quite literally in this case) to have some remediation for when...

Hi CRTT team, I have just completed the Croesor Through Trip with my fellows in our group. I'm extremely grateful to those who have bolted the mine and rigged up the zip lines, the ropes et cetera and maintian this free resource for us all to use. I gather that the zip line is very new and...