Check out http://www.superiorthreads.com/shop/category/masterpiece/description/ Masterpiece is recommended for piecing. Use a lighter tension but there is very little lint. I love it!

I use both Masterpiece and Aurifil, both 50 weight, in gray, or in a warm beige. I like them both equally.
Kathy

I used Aurifil for several years and was quite happy with it. Then I tried Superior's Masterpiece and love it. I also settle on a neutral color and use it all of the time so I like the 3000 yard cones in Parchment. Buying the larger cones saves money and I like not having to switch spools. They ship really fast and they are so pleasant. Just my 2 cents worth!

I use the same as Renata and when I run out of that colour I have a grey aurifil that works well too. I have also used Superior's So Fine and Bottom Line. The 50wt seems to be the best for piecing because the thread is thin and doesn't affect the seam allowances too much. Hope that helps.

I LOVE Aurifil 50 wt. and use it for all machine piecing. I tried Edyta Sitar's advice on using color #2370 for most piecing and so far it has worked wonderfully for me--I don't have a need for lots of different colors as a result. I purchase the 1300 meter reel. I have not tried Masterpiece by Superior yet so I cannot speak to it but I understand it is quite popular too. Hope this helps. Renata

We are just looking at stocking thread for machine piecing - what does everybody use/recommend? Any input gratefully received!