I know Stovepipe produced a replacement engine spec for the in-built Auran HST set.  I've downloaded and tried this but the difference (TS09) is barely noticeable.  Acceleration is laboured up to 40mph.
 
I was wondering if anyone else has tried the engine spec from any other loco and if so, what the spec is so I can give it a bash.
 
Cheers.
				
			I was wondering if anyone else has tried the engine spec from any other loco and if so, what the spec is so I can give it a bash.
Cheers.