generally you just follow their cues, so if lo hits 3 mo GS and wants food before 3 hours you feed then and then just look for her cues to go down for naps... you might end up with an extra feed (do a cluster at the end of the day) or you might find that in some of the cycles her naps lengthen (b/c often at GS they also want more sleep ) - just o with her cues and usually it setles back down gradually over a few days.