If you compare the manuals for the SBE and the Ethos, they are pretty much the same gun, design wise. Main thing with an SBE is don't over-oil it, and use a light oil, something that doesn't thicken up in cold weather. You'll know if the oil is the wrong type or too much, once you get below zero. it'll slow down the cycling. Too much oil will result in the need to clean out the recoil spring tube, it gets pushed back into there.
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