adjusting to/fro placement of outer presser foot on 441

[esantoro]

I have been able to adjust the to and fro placement of the inner presser foot on a 441. I've also been able to adjust the rotation of the outer presser foot on this machine, but is it also possible to adjust the front to back placement of the outer foot?

I need optimum placement of the inner and outer presser feet when used with the curved hump of a raised stirrup plate.

Might anyone know which screw makes this adjustment?

Thanks,

Ed