klgls

I have the Janome 6600 also and just finished FMQing a quilt yesterday. I use Gutermann 100% polyester thread and the blue dot bobbin case - the only time I have thread problems (eyelashing, etc.) is when I forget to put my pressure foot down - simple mistake but I seem to make it often when FMQ.

Gay

I usually find that eyelashing of the top thread underneath is due to incorrect threading. Try re-threading, making sure the thread goes through the tension discs properly.

Grandma Mary

If you can't switch back to your Aurifil, try using the bobbin washers that Leah Day recommends. I've heard that they help with the issues you're having.

mjhaess

I have had a lot of problems with Connecting Threads thread...Not all my machines seem to want to use it..My old Singers seem to love it but my Elna and Bernina do not like it..

fireworkslover

I too have trouble fmq w/ Essential Thread by Connecting Threads on my Viking Sapphire 875 Q. I get the globs of thread underneath, so much so that the machine will jam or break the thread. I have been using Bottom Line in the bobbin, so maybe those two together just don't work. I'm unable to adjust my tension any higher than 9.5 on top and it still doesn't work. Perhaps I should try have the same thread in top and bobbin. I also use a Topstitch 90/14 since this 50 wt. thread does seem to be thicker than other 50 wt. threads. Well, I guess I have one more thing to try. I'd hate to not be able to use all the beautiful colors of that thread that I have.

redbreast

I realize you have had many suggestions already but one thing I have learned with
FMQ is that the weight of the thread in the bottom really MUST be equal to the weght on
the top thread or you will have problems. As you undoubtedly found out.I know everyone
has their favorites but I have found it really doesn't make a lot of difference which thread
you use as long as the weight is equal.

Lady Diana

Change to a 90/14 Microtex or topstitch. This should do the trick.

nancia

i use ct threads 90% of the time, possibly more. i have 6 machines and none have had any problem with the thread.

mamaw

Connecting threads is a heavier thread and I couldn't use it in my Janome. It was my dealer who pointed out that it was the culprit. You should use the same top and bottom anyways.
Also, the blue dot bobbin case is actually a convenience so you don't have to keep changing tensions when going from quilting to regular piecing or sewing. I bought one for that reason and love having it!

romanojg

The only time ever I've had a thread that makes my machine mess up rather its embroidery or sewing is when I use the Bottom Line thread. 100% of the time if I try using it, I have a problem but not at any other time. I'll save it for my Kenmore.

I've never had any problems with Connecting thread or any other kind of thread except for BL.