I have a BL, you can set it to start center, I'll have to check how. OK, my workbook states: "The needle position can be adjusted for the straight stitches in A1-4, B 00-05, C00-02, 04, 18 and D50. Use the stitch width toggle button to move the dcenter needle position is 4.0 and is shown with a shadowed background.
I usually have mine in A, B, or C mode for a quilting foot, on, which starts on center.