Dream feeding thoughts

Ca

My son is almost 5 months old. He's usually a good sleeper at night and has been for a few months now. On a really good night he can sleep 7-430, eat at 430, and back to bed until 645-7ish. Most nights is 7-3. I nurse him around 530 after his last nap, and then a little more when were winding down for bed around 630. My sister, who has a 6 month old, has been doing dream feeds at around 10pm (bed around 7, dream feed 10) and then her boy will sleep 10-7. Id love for his longest sleep to be more in sync with ours but I'm hesitant to make changes because he is such a good sleeper Im worried about starting a habit of him waking more. Usually he doesn't wake up until maybe midnight or 1, and I can just give him his paci and he's back out until 3-4 to eat.

Everything I read about dream feeds it seems like it's for really little babies who wake multiple times at night to eat... Is it too late to start a dream feed? Should I not mess with the schedule we have? Thoughts??