Do you need the newer crank ect to run the CoolPower LS Heli blend (20% instead of 22%)?

How about the Coolpower Aero Blends? The 30% has only 17% oil.

I'm trying not to increase the take off weight of the airplane when I mod to CDI. If 4.5 oz are added and another 1oz for re-balance we will need to reduce the weigh of the fuel and fuel tank by 5.5 oz to be weight neutral.

Is that possible on 20% oil?

If we reduce the fuel load from 20oz to 14oz (requires a 30% improvement in fuel consumption for the same duration of flight) and replace the tank with a smaller 14oz tank, that should easily account for 5+ oz...should'nt it?

Maybe some of my assumptions are incorrect...whats the true weight of the module, lead and plug?

Colin .