Well it’s here, my new Timberland chainsaw sharpener that is. This thing is incredibly well made. Even the carrying case is better made than most sharpening tools. The instructions are easy to read and understand and combine that with Timberline’s website video and “Tips & Tricks” section make the sharpener very easy to use. I was sharpening in a matter of 10 minutes and a 20 inch chain took me about 8 minutes to sharpen. I re-sharpened a chain for my 455 that had been sharpened by the dealer on a grinder. The Timberline made a much sharper chain with a smoother, almost polished, cut on each tooth. So far I’ve only had the chance to cut silver maple with it so it may not be a fair test. But I have to say, it did a fantastic job on that maple. The chips were giant sized, almost like cooked egg noodles. Cuts were effortless and straight as an arrow. I went through 4 tanks of gas and chain oil without so much as a touch-up on the chain and the chips stayed almost the same size. I’ve not tried it on my 441 yet, dang post office lost my cutter for the Stihl. The down side is it is pricey and you still have to carry a flat file and guide to take care of the rakers, but I carry them anyway. Not sorry I spent the money; I just couldn’t do a good job with a file and $7.00 a pop for the shop to do it plus the time and gas to get there and back makes it worth it for me. I’ve got some hackberry and ash to cut in a few days so I’ll let you know how it works on them. If someone would be kind enough to give a big white oak to test I’ll be happy to write a follow-up report….