Are you spraying for prevention or for benifical? Or both? I do a 5-6 day cycle depending on my humidity during application. I do preventative then benifical then my rest days. On canna boost I'd start out slow and bump it up just a bit every week until week 5-6 and pound them, I'd go with the Feed Chart until you dial it in with cannaboost considering it's expensive AF.
I foliar feed on that cycle in veg and until the beginning of week two sometime three depending on if buds have begun to form, or I'll just use a benifical first weeks of flower if I don't have any issues with anything.