Hi Dennis, I cant really take claim for Dave's creative filing methods. I believe his methods were first used in the Mangrove Swamps of the South.
Here in Canada, we use a much safer method, whereby the saw is plunged into a standing pecker pole(usually an Ironwood) and with the saw dawged heavily into the bark and the tip of the saw extending from the other side of the sapling, and the saw on fast idle with the chain slowly rotating, a flat file is gently applied to the cutters, however the saw must be installed into the tree upsidedown to make this method effective.
This method can be dangerous though if the sawuser isnt prepared for the kickback that ensues while plunging.
Dennis, I was wondering how my chainsaw bicycle was coming along? I think the Stihl 08S powerhead should be fine. Could you get Ken to put an expansion chamber on the exhaust with silencer plates that can be installed while within City Limits?
I was thinking that a 48 T rear sprocket and 24T chain wheel would give the correct mechanical advantage for the torque required to reach the summit on the Cokahala Hwy.
Let us know how the Buffalo hunt goes and good luck.
John from Canada