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The Sewquiet 4000 runs about $170, but I'd go ahead and just buy a 2" pulley initially and see if you can get use to the clutch motor. Putting a thick piece of foam under the foot pedal for added resistance also helps to make the speed changes less abrupt. In regards to stitch quality there are alot of factors involved besides just the machine; though higher quality machines that are well tuned and matched appropriately to the task do better. For instance, my Consew walking foot would be a bad choice to sew 1 ounce silnylon, but it excels sewing many layers of heavyweight packcloth using size V-92 thread. On the other hand, my Singer 237, which I paid only $10 for at the Thrift Store, would do an excellent job with the Silnylon, especially after I've taken the time to adjust the thread tensions perfectly and put in a size 10 needle and Gutermann thread. Now the thing I like about Industrial machines that are not all worn out, which can be the case when you buy them used and find yourself having to replace worn out parts like the hook, is that they often feed materials more easily due to their stronger motors and bigger feed dogs. Another thing I like is that once they are set up, they don't tend to go out of adjustment easily since they are intended for continuous production work. Lastly, when sewing bulky items the added underarm space on many machines is a real bonus. So in conclusion, I'd have to say that commercial machines can be handy for making backpacking gear, but many fine home machines like the Singer 401 you have will do reasonbly well when tackling UL gear.
Edited by boldav47 on 05/29/2012 11:59:23 MDT.
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