I have ordered from both and love both of them! Don't know about the Bottom Line/So Fine but funny story--many long years ago when I first started quilting, I would faithfully iron my seams and they would fall apart! Back then I didn't know the difference between poly and cotton thread. I thought my iron was overheating and became afraid to use it so I cut off the cord so no one else would fish it out of the trash and use the "defective" iron!

I buy Superior's King Tut thread from my LQS and I totally love that thread. Had not heard of Red Rock till just now, so looked it up and bookmarked it.

Totally agree...love all their threads. There clubs are nice too.

I have ordered from both and no problems. Great thread from Superior. My favorite online shop to order thread is:

http://www.tristan.bc.ca/specials.html

okay ladies, what weight of thread do you use in your machine / bobbins for piecing?
What weight do you use for hand appliquing?

Thanks so much for the help.

For piecing, my absolute favorite is Aurifil 50wt 2-ply (top and bobbin). However, I also like Threadart's 60wt polyester bobbin thread for piecing (both top and bobbin) and it's a lot less expensive. I have tested this poly with an iron to make sure it doesn't melt, and it has not melted for me. Here's a link to it:
http://www.amazon.com/Bobbin-Thread-...dp/B0034W118Q/

With both of these threads my seams lie flatter and my piecing is therefore more accurate.

Superior is GREAT! Even if you decide not to order from there, sign up for their newletter - they have tons of information. Tension, Needles, Thread, etc.

Have never this problem. In fact, have never had ANY problem with Bottom Line. Recently had to use some Gutermann thread because I needed a bright teal, and I didn't have anything even close to the right color in Bottom Line. It was pure misery. I was so happy when that project was done and I could ditch that Gutermann.

I would say test the thread for yourself. That's what I did with an inexpensive Threadart polyester 60wt thread. I sewed on scrap fabric and then ironed it for much longer than I normally would (on my iron's hottest heat setting) and it was perfectly fine. This may not be true for all polyester threads, but it's simple enough to test.

Funny - hand appliqueing was how I first got turned onto Bottom Line. I was looking for silk thread, but it's expensive and you have to buy a whole spool - what if you need 10 or 12 different colors, but only a few yards in each color? Someone suggested Bottom Line for applique, I tried it, and it works beautifully for applique - it sinks right into the fabric and becomes invisible, just like the silk. So then I purchased one of those assorted donuts full of different colored bobbins, which is great, because now I have 118 yards each of 46 different colors. You know how much that would have cost if I had purchased silk? :shock: