Sounds like you have a straight plan to me. I'd take her off the week feed slowly, 10 days and 14 days like you said. Just remember that if she's been on this routine for awhile that she might get a little aggressive until she resets herself and her routine, it'll go away. Every 10-14 days is what I feed, but I let the meal leave a noticeably small bulge in the boa. Hope I helped!