I am convinced that the oils offered by Legend are some of the best 2-stroke snowmobile oils available. I would caution against writing them off simply because they are mineral based oils. There are benefits to mineral based oils that are often overlooked with the widespread interest in "synthetic" oils. The mineral base of these oils is very highly refined, where most other mineral based 2-stroke oils are not. This oil burns very clean, even cleaner than most "synthetics" due to the highly refined base. Remember that the oil in a 2-stroke not only lubricates, but must be burned with the fuel as well.
Maybe some of our resident chemical engineers would care to analyze this oil deeper.