Not to mention to get even good performance with the Saito you will have to run very high nitro in your fuel and that costs. With the Moki you will get the performance on 5% nitro or you can run FAI fuel = no nitro. I run one of my caps with Moki 1.80 and the other I run an O.S. 1.60 and the Moki rules. The cap with the O.S. flies fine just not as fine as my cap-Moki combo.