Both methods when it comes to eating have about the same problems. Either they gain there weight fast or gain it slow. I've heard stories where they took the eggs and incubated them and the female wouldn't eat, when she did was after the babies hatched. When I did maternal incubation, my lesser was skinny but she ate that first time I offered. My Axanthic, when I put her eggs in the incubator she ate two days after. I think it's safe to say it all depends on the ball itself. Also your cleaning methods. It's all the same as long as they eat.