Frozen Gelato. Late post.

Over the moon with the first week of flowering. And I'm thinking I'm gonna have to start stepping up on the water game maybe start doing a litre when they turn on and a litre 6 hours in as it's starting to dry out really loads daily. I water it every day with calmag. Fluxuating with the pH but I have noticed the 6.0 is the sweet spot too. Pistils r showing now too nice long twins. I am feeling good about this grow but the amount I'll get off it I don't know. Hard to judge it yet. Think I should defoliate abit this week? Open to suggestions? Was thinking wait till the stretch has finished and then remove any that block my nug sites!