Well, at the same time running 100% synthetic is way better than running with 100% dyno, at the same mix ratio. I run my saws at 45:1 for the better ring seal and low end lube. I have never had a saw engine go out on me, ever. No scuffing, no seizures, no scoring. I did have one 066 with a bad clutch side bearing, but that was from the previous owner and I have no way of knowing what he ran in the saw (and that seems to be a common problem with early 066 saws). I tune my saws regularly for altitude variation and I run only E0 premium fuel with Elf 100% synthetic motorcycle racing oil. I personally do not know of anyone that failed a saw prematurely because they were running a newer air cooled 2-stroke at 50:1 with an air-cooled 2-stroke oil. It would be really hard to differentiate the oil that they are using with other factors such as gas quality, tuning and running conditions.
This site seems to be going toward high ratio oil rates all of a sudden after Randy posted a blown fully ported saw that was run at 80:1. That is a rather high strung saw running on a very lean oil mix. Randy is pushing the bearings hard with a lot more compression, and hence they are being run beyond the intended design limits of the saw. Exotic conditions compared to stock. From the photos you cannot really say that the cause was directly related to the oil, though it looks dry there in the low end. In my motocross days we ran on higher oil rates to get better ring seal and more compression. When I left this site a few years ago all the rage was toward 100:1 oils and exotic blends. I never ran that stuff. I have run all kinds of pure dyno and synthetic oils and blends though, from older 16:1 to newer 32-50:1. I swear by 100% JASO tested FC/FD synthetics myself.
In the end, I can see where running a highly modified saw would require more lube, but not a stocker. And Randy has modified a lot of saws out there running 50:1 oil.