Its going to stretch for flower now, seems like you're a little behind, maybe its the smaller pheno type that smells more citrus. I've grown 3 times, 2 out of 3 were the thin mint pheno as far as i could tell and one was sunset sherbert pheno. They were all good smoke, no growing issues, would grow again.
Someone had also mentioned, it can be difficult for seedlings to mature in a larger pot sometimes. I thought that might have some merit as well.
I also don't think this topic merited its own thread since we are discussing this all in the fast buds gelato thread.
At the moment, the sweet gelato and related crosses have a small margin of growth above the fast buds gelato which i assume will start flowering soon as well and we'll all be waiting to see whos fill out the most in the flowering and stretch phases. I honestly think our results have more to do with our growing than the genetics were using.