Making opening training databases

I just want to know if this is an effective way for an opening study.  For example right now I'm working on a Trompowsky database as black (black to move is a quiz position) and basically play 2...Ne4 (yes I know most Tromp players are booked up on this one but it seems like black's best bet to pressure d4 while avoiding 1...d5 mainline transpositions) I'm using this one particular example because it's highly underrated and many players as black don't really know the theory, or go in for sharp lines that white will probably know better such as 1.d4,Nf6 2.Bg5,Ne4 3.Bh4,c5 4.f3,g5 5.fxe4,gxh4 6.e3,Bh6 7.Kf2

I'll have one handy for Veresov, London, and Torre since playing memory with people who'd rather not for a little while would be a nice psychology.

Anyway back to topic.  I just want to know if my notes are correct to ensure I'm playing the correct move for the correct reason and stay within the spirit of the opening:

As you can see it's far from complete, but I figure knowing reasons for the moves will make the memorization go along better and avoid being a booked up fish.