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Hey Folks, So I am so excited to be a new owner of a Cobra class 26 but I have two problems. 1. I cant solve a problem with having one loose stitch during projects. I will adjust the tension and the knot is sitting in the middle and during a sewing run ill get one loose stitch almost every time? 2. The machine is in a terrible bind and making a squealing honking noise when sewing. The noise is still present when using the hand wheel with no thread loaded. I eliminated the thread to eliminate potential tension issue but the machine is so tight and seems to be in a bind? I've oiled heavily with some minor improvement. The problem has been so bad that the great people at Leather Sewing Machine Co. have even spent hours on the phone with me. They even had me making adjustments on the internal shaft from the wheel and inside shaft. They facetime me to watch the machine and we made some adjustments to the bottom bobbin. This seemed to have helped a tad but the machine feels to be under internal friction. David at LMC customer service was the best I've ever experienced and he talked with me on the phone and email throughout the diagnosis. He was so understanding and accommodating that he even sent me a new head this weekend; however , sadly the new head did the exact same thing???? The shipping box from UPS was pretty beaten up?? I don't know if shipping could be causing damage but both machines are under a bind somewhere. I have wanted one of these machines for years but I need anyone's help that may have experienced similar issues and fixes if possible. I'm so discouraged and exhausted I just want this beautiful machine to lay down a good stitch and not sound like squealing tank. Maybe a bad run of machines or shipping damage? Again, If you want a new sewing machine and not sure where to purchase? PURCHASE FROM LEATHER SEWING COMPANY because what they say about amazing customer service is absolutely TRUE. Hands down best service I've ever experienced and I owned a cowboy 3200 and Ryan was pretty dang great. This is mechanical issue not a personal one for sure! cobra noise video.MOV