I was actually considering using coco as my medium at the beginning, but somehow ended up going 100% perlite, mainly for simplicity. I think I will definitely experiment with new mediums in the near future, and coco is definitely one of those mediums. I have seen Dali hempys transition from perlite to coco and it definitely seems superior.
I think I will wait on the boost like you suggest. The hempy bucket really is great. I can't see myself switching to any other method anytime soon. It's just so easy and effective. Eventually I would like to get an automated feeding system going, maybe on my next grow I will experiment with some things.
Thanks for the tips jela, I will post an update once the lights turn on in under an hour