Originally Posted by feline fanatic
A 30wt thread is a very heavy thread. That seems odd to me to use such a heavy thread for applique unless you are doing a blanket stitch around fusible and really want it to stand out. I am by no means an applique expert but it just strikes me as odd to be using such a heavy weight thread.
The cotton coats & clark I use for piecing - and pretty much whatever else it matches is 30wt. I do have a few threads that are marked 50wt -- and even more that aren't even marked with the wt -- if you really look you can see the difference between the 30 and 50 when they are spread out right next to eachother -- but overall in a project I doubt you would see the difference.