Question: "Can I use a Sharpmaker to sharpen my traditional Great Eastern Cutlery pocket knife?"
Yes, you can definitely use the Sharpmaker to restore or establish the edge of your traditional pocket knives. In fact, sharpening a knife can be accomplished with almost anything that can scratch or abrade the steel of the blade, it may just take more time and a little practice. Some people even use the bottom of their ceramic coffee mugs -- crazy!
That being said, traditional knives made by companies like Great Eastern Cutlery, Queen, or Canal Street respond well to additional sharpening since from the factory they may not be what you're accustomed to. You may need to re-establish the cutting bevel to the pre-determined angle on the Spyderco Sharpmaker. One effective way to determine if you're removing steel correctly along the cutting edge is to mark the blade with a black marker. After one 'swipe' through your Sharpmaker, check the edge and see where the marker has been removed -- this is where you are grinding. As long as your grinding along the cutting edge, continue sharpening as you would normally until your knife is sharp!