It was reviewed by Tag Gorton in Garden Rail 95 July 2002. Sadly that's before the digital archive started (137 Jan 2006).
http://magazineexchange.co.uk/cw/garden-rail-magazine-july-2002-issue.htmlLast time I see it for sale in the traders adverts in Garen Rail is July 2007.
I have one for which I understand I'm the 4th owner. The original owner converted it by attaching a Roundhouse Fowler tender, losing the cab back, extending the sliding roof rearwards & radio controlled. The next owner had problems with the 40 MHz radio control, resulting in the loco crashing not once but twice into a rake of scratch built wagons, turning them into a collection of parts again. It gained the nickname 'Smasher' after that event & the next owner had some 'Smasher' name plates made for it. I subsequently bought it but have yet to fit the 'Smasher' name plates.
If your's does not have a air control collar on the burner I can recommend fitting one (a free upgrade from Accucraft UK), and similarly if it does not have a No.5 gas jet fitted (has the number 5 stamped on it) I can recommend fitting one of those (available from Accucraft UK & dealers at cost). Both of these help improve what can be an unstable burner (You've probably seen used Accucraft's for sale with smoke box door paint burned off), although the Superior does have a longer boiler than other locos like Edrig/Caradoc/etc.
Chris Cairns