Looking really good man.
Right now seems like a good point to back off the nutrients. I like to push mine as far as possible but it's dependent on some varying factors. You have a lot of healthy foliage for the flowers to suck nutrients off from so I think you're playing it safe with minimal potential negative effects.

I'm curious to know if you get dense bud as well, because my minimal experience growing an auto once was very airy light bud and I thought it was kind of strange.

I've heard feminized photoperiod are more prone to issues like hermaphrodites, and other things. The lemon drip I grew was a feminized strain and I had a lot of trouble in the early stages, otherwise they did pretty good.

I think the most optimal scenario is running clones from normal photoperiod females. An area that I'm also pretty inexperienced with still but it seems pretty logical to me to try for standard photoperiod clones.

Can't wait to see the end result of this Crystal Candy, great work bro!