Only questions that won't be asked are stupid questions.
I and probably many people here are glad to help in any way possible!

Hmm.. I'm not sure what you mean by transferring cutted plant into hydro system? Did I do that too? (it's possible, hard to remember everything...

Still, I usually plant cutted plants to temporary small soil pots until I'm able to tell that they will continue their growth. After that I usually plant them into their final pots which are preferably, bonsai pots.
For growing many different plant shapes and structures, there a re many ways, cuttings being one of them.
Also, after cutting plant to very dull sharp I shape (a stick!) a new growth will begin and new stems will emerge soon.
With many varieties it doesn't take too long for the stems to get woody.
Wiring is important but not necessarily needed with every variety at that stage.
Good substitute for akadama is clay based cat sand. I might have even mentioned that on the bonchi article, not sure....
Hope it helps!