blackstone models, as far as i know are strictly HOn3....theyre extremely nice engines. for their size they have amazing detail and to have tsunami sound already installed and only about $350, that in itself is amazing. blackstone is releasing their c-19 i believe in december 2009 again with tsunami installed. i really hope they contine the mikados and make the 28 and 36 i dont care much for the 37's.
i would recomend blackstone to anyone....precision scale(mountain model imports) make a great engine too but their big downfall is for $300 you only get the engine no sound so add another $100 for sound, if you have someone do it for you it raises the total cost to almost $600
David Tenney
Krystal City & Gothic RR