I have been running 30% nitro 18% oil fuel in my Saito 100 on a Pulse 60. The price of 30% over 15% makes me consider changing to 15% nitro fuel. How much differance is there? Will I notice a huge differance? The Pulse has plenty of power with the Saito 100 running 30% and runs great but it would be nice to save some money on fuel.