Dinglem - Thank you! The orange one was indeed an SRM Scorcher so must have been my 27T for std class racing, the Demon was definitely a 19 quad as I ran that in my Optima then Mini Mustang, so I now realise I have no idea what the 16 triple was I ran in my RC10 - possibly another Demon?
And yes - that was also the other motor I had, exactly like that with the "Buggy special" on it and the small dot sticker.
Small world - say hello to him from me - will PM you.