He may be telling you to drop some feeds because some babies will decrease their solid intake and rely heavily on the formula, when you want them to slowly be changing this around. About 24 oz per day sounds about right for his age. I doubt your HV really cares that much which feeds you drop, as much as he cares that you decrease the overall milk intake. At 8 month I had dropped the dream feed and my LO was taking a bottle at 7:15 AM, 11:30 AM, 3:30 PM, and 7:30 PM (about 6-7 oz per bottle). I gave him the bottle before breakfast, lunch, after his afternoon nap, and then before bed.