Chainsaw Repair

I tried the Woodsman pro when Baileys first started selling it  .It did fine until I tried to file a compound angle like Oregon 72 then it got bad .Now dang it I can file a chain as good as anybody .Made me mad and I quit using it until good ole "Crofter" Frank ,TW's Dad showed me the error of my ways .That praticular one or at least so at the time only took a 90 degree straight accoss not a 10 compound because of the way the top plate met the side plate .I learned something I didn't know .