No offense towards you intended ... I just don't use castor in 4 strokes... its a personal choice... but one particular flyer will use it to instigate an argument, and I refuse to be drawn in... I don't mind an intelligent conversation about the subject, just not used as a tool to ensue a conflict.

15% nitro is pretty hot for that compression ratio.... I can understand the "one mix for all" point of view., it makes it a lot easier to manage, especially when you run various glow engines often.... I only run the one engine on CDi / Methanol Glow fuel, so I have the one glow fuel mix for the boxer ,14% oil, 8% nitro, 78% methanol... I typically run between 5 - 10 % nitro in the glow 4 strokes.