Just started reefing so no clue, but it would make sense that they would grow faster (thus inevetebly split faster). From what I have read, it seems that many corals can get their energy from harvesting zoo (not zoa), but eating is benifitial and or neccesary. It would seem that feeding them would speed up their metabolic proccess to some degree.
Assuming I got that right... can you over feed? I have seen some posts that folks feed their ricordia about 2x a week..