If anyone hasn't followed GNs' link to a SUPERB thread on this very subject, please do so now.
HEREI'll repost here what I've just added there, for all the people who never chase links on other threads

QUOTE (GanjaCat @ Oct 28 2009, 11:14 AM)

Absolutely agreed, GN. The words of OT1 always seem to bring a breath of fresh air to any thread he posts in.
I've just been gifted a small bottle of BH so I'm more than a little interested in everything that was talked about on this thread, contradictory though some of it is.
I'm not in a position to do a true comparison grow but what I can do is this:-
Within the next week or so, I'm putting a batch of clones & seedlings into the bloomroom. I'll select ONE each out of my SLH & BC clones, the most 'average' specimens I have, which will be disconnected from the sprayer lines after the 14 day 18/6 'bedding in'.
I'll take a 'canful from the reservoir at each feed, add BH according to the same kind of curve as I use for the (modified OT1 BioBizz) feed sched and hand-feed the selected two until 2 weeks before harvest, when they'll go back to 'standard' feed. I'll harvest/trim/cure these test-plants separately so come about Feb '10 I'll be able to provide yield & smoke reports in comparison to their sisters.
Als wat goed is that will give 'useful' (as compared with definitive) answers to what I think are the key questions for most small growers-
Does it improve the quality &/or quantity of my weed and if it does, is it worth the price?
The reason I say 'useful' is that this will be but one possible way to use the product, albeit pretty bloody close to what BioBizz recommends.
I accept that this does nothing to address the 'moral' questions involved with using products such as this, being a 'umble engineer the whole subject is too complex & volatile for me!
But if the bloody stuff either makes the bud taste bad or fails to boost yield, all other considerations are moot anyway, aren't they?
Reckon the right place for reporting on progress is in my current diary as the surviving 6 Sharksbreath & 3 Chocolope will be flowered alongside the SLH & BC anyway. Look out for updates there from about the end of November onwards.