Also how long do you think that OS will release it's first .52" to .70" class Gas burning 4c engine? Will it be a spark ignition set up like Siato's engines or will the go straight to the Gas/Glow ignition system like on their GGT10 and 15 engines? I for one hope that they do and that it is soon. I also hope that it is the Gas/Glow ignition system:-)