Our first of hopefully many visit's away was to the Butterley railway on 14/07/2010 , and we took "Willi" and railcar which ran faultlessly , at a very sedate pace, but despite help,we could not get enough gas into "Willi" and the maximum run was 2 circuits of the smaller upper oval. After good advice, i have ordered a replacement conversion gas valve and hopefully this will cure the problem. Even so, it was fantastic to see our own loco in steam for the first time.