i used dutch pro all the way through, explode does what its supposed to and the chart is fine, just remember to ween it in slowly. i started my explode after the stretched had finished all the way through till flush. my tips constantly looked burnt on the edges but never went into full blown nute burn and my growth was constant.
Explode is its own thing in my book, it acts as a booster and a stimulant for the plant. i still have some and will probably use with canna AB and once again..after stretch. Towards the end of your run reduce the amount down, there will still be nutes in the soil for your girl live off and remember to flush this out!! what ever the size of your container, you should rinse through the same amount of water through ideally, followed by minimum 2wks flush (bear in mind your plants will be ready with​ a 1-2wk window before she starts too panic and self pollinate),
i have never seen a label for this which makes me dubious of heavy metals in there. but dont let this put you off. be smart and flush near the end of your cycle till your plant cannibalizes its own leaves (ie turn yellow).
As for a Bloom A and B. i assume the guys sold you some light mix soil to get you through veg, you may need some bloom if this is true. it wont hurt. start low and slowly increase(1/4 - 1/2 - 1)
Good luck
