I have the Brother PQ 1500 (Well nouvelle model) and my FMQ foot stopped working well. I was getting a lot of clanking as the foot went up and down. I assumed the spring had just worn out.
Here is what I ordered from Sewing Machine Plus Sewingmachinesplus.com
:
Ordered: 1 Shipped: 1 j-200337005 Janome Open-Toe Darning Foot Fits Most High Shank Models (200337005)
$29.99
It works fine. It was the foot they recommended for the brother PQ 1500. You can see a picture of it here:
http://www.sewingmachinesplus.com/da...-200337005.php
Hope that helps