You are very welcome.
It is not secret info at all-it is very well know facts in engine design world. I am not sure why people is hiding this kind of info from the community ( if they have this info), I don't see problem to help people to understand as much as possible on nitro engines.
But please understand me right-all info which I am sharing here is info which I presonaly with my firends got over the years, it doesn't mean it is mother nature laws, it just what we have learn. Some of the info is not supported by any mechanical, thermodynamical, flow etc rulls or laws, it was collected over the years and found that is the best fit. Some times we even so leasy to go and try to match some scintific development to the findings. Just found and used.