Top it in veg 1 week before flower, prune it up, mostly nodes, at day ~10 to desired estimated canopy depth leaving all branches that make it to the canopy zone.
IME, when I top, I get more terminal bud sites but smaller buds but more yield. I top to avoid big giant colas that are prone to mold and prefer smaller.
I have my doubts about that Gelato(s) making the rounds. The one with balls, 33, larry bird(?), with those tiny calyxes.. meh. Maybe it needs to be much more close to light, kinda pretty, but overall larfy. I do kinda like the high though, reminds me of SF weirdness or Trufula tree land. And that 41, the taller lankier, big purple calyx one, didn't have much of an impressionable high and the yield seems compromised.