We do ours meal then meeting and we are in a town where a lot of folks commute to the Houston area for work. So, from a practical standpoint, having the meeting after the meal (at a later time) appears to allow more brothers to make to the meeting from work and other obligations. If the meal and meeting were switched it might make it harder for some to make the meeting. I find (from my position in the kitchen) the some brothers have dinner with their family before coming to the meeting. At first I thought "why not fellowship with the brothers", but spending time with family is more important (per our teachings).