opinions on pk spike supplementation with Biobizz line

If using the entire line of Biobizz, would it be beneficial to use a PK spike in flower? There are a few organic options, but the one I am leaning toward is indo bat guano (.5-12-.2) and either Humboldt's deuce deuce (0-0-22), or Earth juice's meta-k (0-0-10). I notice that roots organic HPK, and BAC has a bottle, but those aren't as easily available.

any input is greatly appreciated. Thank you!

I'm using the entire Biobizz line for the third time, and the only additional flowering nutes I use are liquid bat guano and molasses for carbs.