Have seen people rig up a small hand which to assist the old back which seems to work well. Red Stringy and Pine obviously aren't too tough so should get through it fairy trouble free. Milled up a heap of Yellow Stringy which is probably the toughest of the Stringies was fairly slow going but the using a Stihl 460 got it done slow and steady with one operator logs were probably around 20 - 25 inch diameter. . .
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