Thanks for this.
As I'm new to quilting I don't actually know what you mean by heavyweight thread. I have beige / grey thread I use for piecing and some machine quilting 100% long staple cotton for quilting. At the moment I need to buy the thread I need for each project as I start it so a pointer in the right direction would be great. How do I define heavyweight thread, will it say heavyweight on the reel somewhere?
Thanks again