The problem is... the more reading i do (here and otherwise) the more conflicting views I seem to get. Or maybe its just that I cant decipher it all but I would truly appreciate some help with this query. I love working with my trees but the larger and more diverse my collection gets, the longer it takes to water on liquid fert days and due to limited time I'd like to cut this time down by simplifying my regime if possible.
Alternatively, this is also an opportunity for me to share my experiences with other beginners...
I should note, all of my trees are pre-bonsai and are in the 'grow on' stage. Also, these are fert contentrations are for the active phases of the trees and those species that require full sun are getting it, those that need shade are in a shade house. I'm not in a rush to get to the final vision, I just want to make sure my trees will flourish with the time I have for the daily care of them.
Below is a table of the species I have, followed by they're fertilising regime and results. Thanks again

Edit: after previewing the post and realising the format i had constructed did not carry over, the table key will be like this: species will be in italics, fert regime in bold and results in standard font. hope this can be clear.
NATIVES
Banksia Integrifolia 1/4 strength Nitrosol (bi-weekly)/Osmocote slow release for natives (AKA: OTn) good results
Callistemon "little John" Full strength Nitrosol (bi-weekly)/OTn excellent results
Corymbia (unknown) Full strength Nitrosol (bi-weekly)/OTn good results
EVERGREEN
Azalea (various) Full strength Azalea Liquid feed (bi-weekly)/Osmocote slow release for Azaleas etc. (AKA: OTa) good results
Ficus Rubiginosa Full strength Nitrosol (bi-weekly)/OTn/Dynamic lifter (AKA: DL) excellent results
Ficus Retusa Full strength Nitrosol (bi-weekly)/OTn/DL excellent results
Olea Europea Full strength Nitrosol (bi-weekly)/OTn/DL excellent results
JUNIPERS & PINES
Juniperus Chinensis "Sargentii" Brand new, so no schedule yet but will be posting them in Jow's twisty shimpaku thread
Juniperus Procumbens "Nana" Full strength Azalea Liquid feed (bi-weekly)/OTa excellent results
Juniperus Scopulorum "skyrocket" Full strength Azalea Liquid feed (bi-weekly)/OTa/DL

DECIDUOUS
Acer Buergerianum Full strength Azalea Liquid feed (bi-weekly)/OTa poor results (new growth black/burnt)
Acer Palmatum Full strength Azalea Liquid feed (bi-weekly)/OTa poor results (new growth black/burnt)
excellent results = vigorous and healthy growth
good results = satisfactory growth
poor results are duly explained.
Again, I appreciate any help the brain trust can offer as to how to simplify my fert regime. Criticism helps aswell.