My hens have been laying for 10 wks. MY EE lays the same as grocery store large. My RIR lays med eggs. Is this the size they will continue to lay or will they get larger? I ask b/c I have read that RIR usually lay large to x-large. EE I have read vary but mostly large. Also, at first the EE's shells were smooth but a few lately have bumps of extra shell. Is there something that causes that to happen?