Easter Eggers do best on a higher protein diet. And switching to layer before they are ready to lay can drastically slow down their development, taking them even longer to start laying. They need to be kept on a feed with at least 18% protein content.
Mine are currently not laying due to cold and less light - they eat Nutrena Layer Crumbles. Think I could give them the 18% protein formula for feather growth for the next month or 2? 1 bag will last my 3 gals 1.5 months!