I am sure you are just missing something. I bought the SC as my first cutter. Had simular issues at first and felt I had made a mistake. With the help of the forum here (Not US cutter support) I was able to get it dialed in and I now have 3 cutters. The SC, the Titan 2 and a Graphtec. The SC still gets a lot of work! I have been using the Titan a little more than the SC just because of the quieter operation but once I got that SC dialed in.... cuts great.
Let me add this as a side note.... I think the trouble I had with the SC, and the nights of pulling my hair out trying to figure it out helped give me an overall better understanding of cutters and how to trouble shoot issues with them. Kind of a crash course if you will. Now, if one of my other cutters acts up, I can usually dial in the problem pretty quick. I don't have to always keep coming back to the forum.
There are so many things that could cause troubles. One big thing that even I over look at times is blade depth. If that blade aint set just right you could be chasing your tail but when its on..... its so nice. Also, blade TIP! that thing is so tiny and important, it that little tip flakes off...... your cuts will always be horable.
Anyway, good luck with your new cutter. You only have a few posts so I am assuming you might be new to this business..... If so, just be aware you may still have trouble with the next cutter if you havent learned how to get it all set up properly with the first one.
The SC really isnt that bad, just noisy, once you get it figured out!