im abit unsure about the rules concerning HP buffer tanks. Are bottles such as the small welding bottles and sodastream bottles ok to use as buffers? I know they are no longer allowed by RW as supply bottles, but i cant find any rule saying they cant be used as buffers. Is there any rule concerning them? We are looking at improving the flow into our ram, and we cant fit a 1.1kg bottle in (if we could we would use it as a main tank and carry extra gas anyway).
cheers