Hey Adam. I live in Ely, its only about half an hour on the train.
I'd be happy to give you a go on mine mate.
Trust me, they are easy, my friend had his first go on Saturday, after about 3 hours, he was jumping quite high, and now hes got his own pair.
Once you get used to the feel of them, you will be fine. A good bocking sesision is what you need.
But PM me n we can sort summin out if you wana come to ely nad have a go!