One thing I learned with the computerized machine, I have a Janome MC3500 and love it, is do not use the magnetic pin holders anywhere near the machine. Good luck with your new purchase and it's nice to see another Vermonter on the board.

No stitch regulator available for the 6600.

I find that my 6600 behaves better when I use Superior Bottom Line thread in the bobbin.

Not sure if someone already answered this question, but to tell if you need to oil the wick in the center of the bobbin case, press you finger on it and see if it comes out dry. If so, add a drop of oil.

Youtube has lots of videos for this machine...

http://www.youtube.com/watch?v=QXp3PbMLIwI

Just look on the right side for more videos