|Left is Back WITH Bobbin Washer - Right is Back WITHOUT Bobbin Washer|
The Brother I purchased has a completely plastic bobbin and drop in area - so there isn't a lot of static electricity happening in the bobbin area to begin with and the back is really actually pretty nice and clean without the bobbin washers. When I use the slick thin polyester threads I do tend to get some nesting and looping though, and because I do a lot of feathers the improvement is most apparent to me in the spines of the ones I did here. I have found anywhere you get a large accumulation of thread loops and catching begins to happen for me. SOME of that nesting in corners (really it's knotting) is from sitting in one spot too long with my needle, (read - plan ahead!) but if you practice with this, you can kind of tell where you were sitting in one place with the needle too long and when there is looping from backlash or you can hear the bobbin kind of tick inside the machine on a sharp turn.
|Back of Piece WITHOUT Bobbin Washer|
|Back of Piece WITH Bobbin Washer|
|Front of Package|
|Thin and Pliable|
|Reverse of Packaging|
When they make these machines everything has been created to meet specific measurements and even the tiniest little change makes a difference. If you've ever noticed what a small barely visible nick on your needle plate will do when working with fine threads - it's just a really fine tuned symphony happening down there in your sewing machine and it's very easy to knock out of whack!! I noticed I did get a bit more top thread catching on the top of my bobbin (when the top thread comes down into the bobbin area and wraps around the bobbin thread to create a stitch) and in turn, thread jams. None of them broke my needle and that's a good thing.
I have yet to use this in my Simplicity, maybe I can squeeze that in today and share more pictures.