Can we get a basic Wiki for each tree type. I would include things like what type of tree (spruce, juniper, pine, deciduous) (what type of that type of tree, single or multi flush pine, elongating, etc), Then for each type of tree - repotting - how(bare root or not?, pumice, or akadama, or regular soil or kanuma) and when(season, signs on tree that its time, after care), (best repot for each type of the tree type - bonsai, nursery stock, yamadori). best season for pruning, pinching, where and when the tree stores it’s energy for next season of growth. Best soil type. what ever other details would be basic knowledge type info.
@marks - Bonsai4me.com has a great resource for just this thing under the Species Guide tab. Inn fact the whole site is chock-full-o-info! But the Species Guide is awesome for giving a great overview of lots of different trees.
The problem with preset formulas is that each specimen of any species is different and there would be so many caveats regarding the state of health, amount of foliage, expected weather post a planned operation, etc, that it is easier to learn the logic behind what to do when on what so that you can judge each tree individually. A guide like that would encourage mindless bonsai operators to the detriment of the trees.