Originally Posted by
leonf
...One aggressive set of feed dogs. Hmm wonder where the presser foot spring is? Part of the challenge.
The slighly longer feed dogs and presser foot are fantastic for flat felled seams on duck and denim. I don't think they are too agressive in real life, just a bit more stable handling of heavier fabrics and over bumps. I guess you have to unscrew the presser adjustment screw to get to the spring parts.