How am I doing this ?

[MrBond]

First off, it's not doing you any favors being snappy.

I ask because whatever advice I and others are going to give you are primarily going to be based on the book. So if you didn't read the book we need to know so the advice makes sense to you.

In fact, much of what you're asking is addressed in the book, so I'm not sure what you're asking for. If you're looking for validation to see if what you're doing in terms of the A is going to be "correct", that's not what you're going to get. Ultimately it's your choice on what to do. Every situation is different.