It is a nice engine once you get past the fact that it weighs as much as a .60 has the power of a .40 and guzzles fuel like a 120. That said, it is a novel piece and the carb is like an on and off switch, the correct and wrong needle settings are one click apart. I like it though, it demands respect. As for buying a .61, I have brand new SuperTigre .61, a real one from Italy, a Fox Eagle .60, a Russian Zeus .61, a Merco .61, OPS .60, PAW .60, Webra .61f, 2 Webra SilverLine .61s and an Irvine Q .72, so you see, I just don't don't need another .61 unless I decide that I can't live without a MVVS .61 Diesel. I guess you can tell, I like engines. Been that way since I was 10, 51 years ago.