As I've mentioned previously, multiple times in this thread, I like what Peter is doing with this and how he wants it to be as good as possible before market release. He's done an awesome job so far. My only point here is not to put out performance numbers on engines or aircraft (think Raptor or Synergy) or any other new design which have not been validated by actual testing. It serves little useful purpose and may come back to haunt you later. This applies to me , you, Pete, anybody, no matter their background- doesn't matter. People hopefully know enough that this half displacement engine, based on O-200 jugs, is going to only put out about half of what the big brother does- whatever that is, but it almost for sure isn't 58hp at 2900 rpm. And yes, power figures matter big time to safe ROC on aircraft. If someone is on the marginal side of power requirements and an engine falls short by 15-20%, that won't end up well and they won't be happy.