Thank you so much for this tip! My Elna 7300 Quilting Queen is about 4 years old. It is the same as the Janome 6600P. I was having the same problem that the machine would keep slowly sewing even after I had taken my foot off the pedal. I showed my husband this tip and he took the pedal apart this morning and cleaned inside the foot pedal. He said there was some dust and fuzz in the unit. It now works perfectly! I thought I was going to have to take the machine in to see what the problem was. I do clean out the lint in the machine pretty often too. I did not know about precision point Q- Tips. I will look for those at the store. Thank you for sharing your experience.