yep, different needle positions for either 1/4" foot.
there are so many ways you can find the 1/4" mark..by sewing 3 fabric squares together..each one measuring 3.5 inches.
then when done,measure the center square, it should be 3".
or using a small index card, sew on it, the lines a 1/4" apart.
move your needle left or right to get it on the mark. once you find that number..give it one more push..for the "scant" 1/4".
then you have to make note of the needle position!
i wrote on my machine..i never plan to give her up..so i din't mind marking it.
edit to add: i do not use the Accufeed foot to piece..