He had played in the World's Most Famous Arena as an Islander, Devil, Flyer and Penguin, but the experience is not the same as playing there as a Ranger.
"I don't think the practical side has been really thought through ... the devil is in the detail, not in the principle, " he told BBC Radio 4's World at One programme.
The most famous is the Devil's Throat, 250 feet high and nearly 500 wide - by itself bigger than most of the world's larger waterfalls - but it has hundreds of dramatic siblings.