All good points to go by in a pot limit game.
1. Most players will start out tight agressive in nearly all poker games if they are live, but not so much so in online games since you have to find out how the other players play without seeing their tells.
I generally start out tight agressive too, but sometimes find myself playing rather loosely to try to catch a couple pots for free at the start of a game.
2. Play money games don't generally play out the same way as cash games, but they're pretty darn close.
I do play a lot of play money games just to keep in practice though.
3. Oh contraire. Let's not forget the dreaded "trips, full house, or four of a kind" that are possible with these small cards.
I've been beaten down with these same small cards more than I can remember.
Of course, the higher cards have beaten me down more often.