I always doubted Picco engines also, always ran Nova, until we had the economy issue, thats when I bought a much cheaper Picco. I am still amazed at the quality of the materials inside a Picco. I now run the Picco evo4 buggy engine because of what I seen with the onroad engines. I am a ToolMaker and check timings and dim. of all my engines and others to compare and Mod. Everybody has opinions and that is fine, I do like the Novas and Piccos. Never seen the new OS onroad but would love to.