not been on for Awile but now Happy with my 5" Black 5. I have now fitted Stainless Super Heater A's did not have one before. I also fitted a 15 mm gas Valve for my Regulator with an 1/2 pipe feeding the Super Heater. I have Also from Super heater fitted 10 mm pipe from super heater to Cylinders that was difficult. It now has loads power before it struggled to pull 7 persons going to see how many it will pull Thursday. It's such a different Loco with the Upgrades. Looking forward to second Run on it.