On the Saito 30, on my Texaco model I have a 30 idling at 1800 to 2000rpm, top end around 10,000rpm, but on comp fuel (5 or10%) its top end is about 9,000rpm (lean running). Mind you the engine is well run in. Forget the prop size but it probably around a 10 or 11 and definitely a normal APC prop.
Old Fart good to see some one else commenting on the differences between our Saitos and the "rest of the world". It is because we get our stuff direct from Japan and they treat us differently from especially the Yanks. YS are the same.