>It is impossible to find SIG Champion Fuel in any hobby shop
>within a 50 mile radius of my home, which covers the major
>population centers of my home state.(Utah)
Can't get SIG in SLC? That's surprising.
I have had plenty of good results with SIG and Powermaster. Either may be ordered at what I consider reasonable cost.
I've done enough fuel experimenting over the years to come to the conclusion that a lot of the "lore" associated with fuel is not really all that accurate. Just get a quality fuel with the contents list readily available, and pick the one whose ingredients meet your needs.
I currently use Powermaster in two different varieties. I use the GMA for the PA, and the regular 18% oil R/C fuel for the RO-Jett (both in line with manufacturers recommendations). I like the repeatability and also the ability to know which batch a particular gallon comes from. So far, it hasn't seemed to matter, but if there is ever a problem, it will be traceable. When the there were problems with SIG in 94-95, it was impossible to determine which fuel might be from a good batch, and which might be from a bad batch, without just trying it and seeing. Whatever the problem was, it's gone now, but it was awfully frustrating. Had there been some way to track batches, the collective efforts of the stunt community would have figured out which were good and which were bad in about two weeks.