p'raps I'm missing something - there's a biobizz feeding guide pinned at the top of the organic forum - if you use the dilutions suggested, each time you feed, you'll get results - as your knowledge of the plant's response grows you can "tweak" it a little, but generally, its a pretty accurate guide.
The only difficulty you may find is if you aren't using either of the biobizz composts, perhaps insted using one of those easily available at garden centres - if so, give them a dose roughly half way between the two recommended rates, and slowly "up" it as you go