Varigated thread can really add visual depth to the quilting. I typically use it in both bobbin and top , but some varigated thread is quite thick/heavy . Signature has a line of varigated that is a 20 weight( the thickest/heaviest i have seen) ... and I pair that up with a fine bobbin thread, and use a larger needle.
Be sure to to a bit of testing on a scrap quilt sandwich to make sure you are getting the results you want before you start on the quilt. Needle size , tensions, and bobbin thread all play into the quilting results.
Last edited by Lori S; 08-11-2012 at 04:57 AM.