Thanks guys- it will be tricky to give later due to the food thing. When he was still mainly on bottles, I was able to give it around 7:30 before the bedtime bottle and it seemed like he did better at night then (besides the normal night wakings).
Oddly enough though, he had a virus over the weekend which was a bummer but he did not have any major reflux episodes! So, I am thinking more and more that his flare ups are food related since he was only eating a handful of things since he had a poor appetite.