Fertilizers - what's your preference or pattern?

[BradGC]

I'm interested in what fertilizers everyone uses.
I try with lots of different types. At the moment I'm using a few different types in rotation, high N most weeks, high P or K every other.
At the moment I use ( Australian market):
Nitrosol,
Grow n flower,
Amino - K,
Vanda flower booster.

I notice most growth from grow n flower ( chemical, non organic) but I hear great things and feel that I'm getting good strong growing from nitrosol (organic - boosted with blood n bone + see weed, but doesn't fall under the "certified organic" if you know what I mean).

I'm just interested in finding out what other people use and what are a good reliable fertilizer for flowering, as it's not really instantly noticeable and also keen to find out when is the optimum time to fertalize flower boosting fertilizers.