You mentioned wanting to change to layer feed in spring so you don’t have to feed 2 kinds of feed? Everyone in the same run will eat anything offered so giving both grower feed and layer feed won’t help since everyone will eat both offerings. Layer feed is great if you are a production farm and never have males or pullets that are too young to lay. It has calcium in the mix (basically flock raiser blended with calcium and sold as layer) which is an absolute necessity for the laying females. Backyard flocks typically have a mix of genders and ages at different times. For this reason flock raiser feed is a perfect feed for all ages and genders. Of course laying females absolutely need calcium. In a separate container offer oyster shell 24/7/365. Layers will crave it. Non layers won’t be interested other than an initial curiosity. Males and young pullets not yet laying can have their kidneys damaged by eating layer feed. Much easier to just feed flock raiser and keep the oyster shell container full.