Originally Posted by Rachel
I always use the same thread (I almost 100% of the time use Isacord for embroidery), but if you're doing a dense design, you might get a lot of build up on the back, then you can use the bobbin embroidery thread, which is finer, but you may need to adjust your tension. Good luck!!!
I had a 440QE and loved it, upgraded to the 730E. Embroidery is just awesome! I use black or white bobbin thread in the bobbin most of the time (got large cones of each), but sometimes (especially with free standing lace) I use the same thread on top and bottom. Haven't tried yet with the 730, but it did require some fussing with the bobbin tension. However, I remember being told in class to lower the upper tension, sometimes to around 2.
Good luck, once your friend gets all the basics figured out, a grand time will be had!!! I made a ton of free standing lace snowflakes for friends and coworkers this Christmas.