Originally Posted by JJs
I use an adjustable foot on my 301 and the needle is adjustable on the 319
I mark 1/4 lines on paper the put the paper under the foot and adjust accordingly until I have the correct distance...
Another way I have found to make machine "A" and machine "B" stitch a perfect 1/4" is to use a lined 3X5 card.
Cut the card off on the top line. The rest of the lines are 1//4" apart.
turn the card face down and sew what your machine is 'telling' you is a 1/4" then turn the card back over and see how much difference there is. Adjust from there.