Aurifil works great; it's low lint and its cotton and it is very strong. Cotton is recommended by most for piecing. The 50 wt has 2ply which makes it even better for piecing because you'll have more accurate blocks. That's how I got started on it; doing a Civil War BOM and I couldn't get my blocks to size. My teacher checked and my seams were right and so was my cutting. After I switched to the 2ply I couldn't believe the difference that one extra ply of thread that most have made. It's a strong thread and most people have no problems with it. I have Vikings and a kenmore/janome and they have no problem with it. Get a spool and try it; that's the best way to see if something is a good fit for you.