I have a MTH PS-1 Alco RS-27 in Penn Central paint that I converted to ERR Cruise Commander and Railsounds. This was my first conversion, by the way. After I did the initial tests with the shell off, I installed the shell and powered it up. I heard a sizzle and a pop...then a large amount of smoke oozed from every hole in the locomotive. I was in such shock that I didn't even think to get a picture. In hindsight, it was a very realistic effect...a Penn Central Alco smoking from every crevice. Best smoker I ever had. Got it fixed and all is well now.