feeding to much and growing to quickly was a common thought years ago but I posted this info in another thread. I recently read a report from a vet study on sulc. that humidity was the major factor in pyramiding. I am not telling anyone how to raise theirs or to change their behaviour just what I read, I found it very informative, and made quite a few good points. Also so far (aug 22) I have seen no study that says pyramiding is genetic, I am not saying that it is not, just saying I have seen no such reports. Anyways have a nice day.