I love my Janomes. The first time I sewed to many layers with my 6260 I really screwed things up. The next time I was sewing a lot of layers I , I just put in a bigger needle, & it worked perfectly. So I think the needle size is very important. I have a 6260 & a 7700 & a Platinum Gem. The last one is so handy when I need to take it out, but is handy at home too. Sometimes , so I just don't have to change thread.