Mark,
As you can tell, everyone's sarcasm is directly related to another "beat to death" horse of a topic.
I have a few sarcastic comments myself, but I'll be the gentile one here. As far as mix ratios and oil mixes themselves, your search will find tons of info. People have their own opinions on what is correct. Stihl, Husky, Dolmar, Echo, and so on have committed countless of hours of research and development towards oil formulations and correct mix ratios for their respective saws. My advice, if your using a Stihl saw, run their mix (any of them) at the recommended ratio and be done with it. If you are overly concerned about damage to the saw, clean and polish it up and place it on the mantle. It is a tool, meant to be used, and as all mechanical devices, prone to failure at some point during its lifespan. But for now, run it and take care of it as instructed and it will last you a LONG time.