was given a free sample of nutes what do u guys think?

I aint too sure whether to use them or not as the numbers seem awfully high - it's a 2 stage bloom enhancer phase 1 is given in the 3rd & 5th week of flowering it's called power to bloom by growing edge technology it's a powder & nums are 0-39-30, the second phase umph power is given 4 days after thge 1st but is a foilage spray, I've never used a foilage spray & in general am just abit unsure whether to use them, like I said they were just a free sample, but from what I was told & have also read they can really increase yield, so do I use them or not ?
Thanx in advance x

i would wait to use them on my next grow if i was you...i was just given some free samples also i actually emailed Technaflora inquiring about some of there products they sent them to the shop i go to got them today...https://www.rollitup.org/attachment.php?attachmentid=664903&stc=1&d=1262141401

I would use them on one plant and not any others, then you can see what the diff. +1 on waiting 'till next grow. Just my opinion though, no experience behind it.