To clarify, when you give dollar amounts at the end, at what buy-in are you talking? 10NL or 25NL?

I like this. It should also be noted that when playing 19-hand NL and thus set farming, you should be sure that the majority of the table has more than half the buy-in at the table. Ideally you want lots of limpers, lots of players calling raises with bad cards (high avg pot), and full stacks.

Also, as mentioned, don't post BB out of position unless you're maybe one or two off from the dealer. I would also recommend unchecking auto-post blinds. It's rude but it helps me pause at and make a decision at the best possible time. Right before you post every BB, you should be asking yourself: Does this table still have the value it did when I came here?

Leaving before you post BB next is very bad as you've already paid for another orbit. You could get KK or AA within that orbit for what you've already paid for.