looks like you have it right-
windows 1 and 2- 1 on (MC) and 4 on (100 ohms)
windows 3 and 4- 1 on (+10 db, 66 db total gain) and 2 on (this is the 23Hz roll off filter. I used this setting with my subwoofers and bass sounded tighter and snappier. Also the bass roll-off is before the gain stage which helps lessen the load on the phono preamp by not having to amplify rumble and LP subsonics.
windows 5 and 6. off off. these are additional bass filters after the gain stage and not required if you use switch 2 in windows 3 and 4.