I always prefill bobbins. I have about 40 bobbins for my machine and when I fill bobbins, I usually have at least 21 of them filled with 3 colors of neutral threads (med gray, taupe, and cream) When I get ready to quilt I fill up as many bobbins of thread for the back as I think I will need
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My newest Grandson, Caleb Austin, was born May 29th. I am now Grandma to 4 precious babies. I am so blessed!!!!