I have identified at least three phenotypes in my 11 plant GSC grow, each with different types of buds. At least a third of my plants did not have rock solid nugs, but they were dense trichome filled sativa type buds (and are drying down to very tight hard nugs) while another pheno had round golf ball sized indica type hard nugs while still on the vine and another stretched it out a bit and gave us a hard to trim very dense more elongated and complicated bud, not quite as rock hard as some of the others, but more dense. Not all buds are going to be the same, even within the same variety.