yep, thanks for that John!

Google brought up some of that info, including an email help address so I've sent the question off to them, I'll ring the local branch in the morning too.

did find this too, although you probably have already seen it??

Specifications: Payload: 125kg without pulley or 250kg with, Lifting height: 11.5m without pulley or 5.7m with, Rope speed: 8m/minute without pulley or 4m/minute with, Hoist lever arm: 600kg at 750mm and 300kg at 1100mm