I have a Magnum .52 and .70 4 stroke , Saito .56 two .72`s and two 100`s , an Evo .46 , two SuperTiger .40 , .51 ,61 &75. ,OS LA .25 and MAX.60. They have been flown on CoolPower, S.W and Omega .
After flying on the 3 different fuels I use Omega 15% and buy it 4 cases at a time and all my engines run great on it.
IMHO , they are all good products. The key, is learning to tune your engine correctly, here`s an example.
I built a GreatPlanes SkyBolt for the fun fly we had at MinnFlyers field. I did`nt have a chance to break the Satio 1.00 in. and wanted Mike to maiden it for me. I told him it had not been run yet and needed to be broke in and that it needed a few tanks run thru it first.
He said no problem , we`ll check it out and run it rich.
Long story short, he started it up, tweaked it a little rich , till it sounded right, and took her up put it thru her pace`s. He is the SkyBolt Driver, and I stood there with my mouth hanging open as he wrung it out. . No flame outs , not sputter , just hard flying.
Out of all my engines , this one has never flamed out, sputtered or give me a problem . Still on the same glow plug and it`s on 4th gallon of fuel. And MinnFlyer run`s CoolPower , but he set the engine to run on it by ear , not by fuel spec`s on the bottle.
I don`t believe it`s so much the fuel, as due`s paid. Skill comes from time sreved, when it comes to engine tuning.