It is possible to grow them smoothly. I have a lot of rehomers who are slight to very bumpy
but the ones I have had from hatchlings have remained smooth as they have grown. If you look in my album @ Rambo in Herman album & Roxy in Marginated album you will see these ( they are not recent pictures to be fair Rambo was approx. 300 grams at the time, shes now 430ish & Roxy is a lot lot bigger now - I will see if I can find more recent pictures)Next to Roxy is Marge - I would like to point out I didn't grow Marge - she is a rehomer - her pyramiding is a lot less now