Notes act as reminders. They should not really be used to note the way they play a particular spot, unless you see them play that certain spot multiple times.
Instead try to note general stuff that gives you are overview of the opponants tendancies.
So if you have a guy who tends to
bluff in a lot of differant spots, simply just note he's capable of bluffs.
If he only plays calls or bets with good
hands and never bluffs, simply note "honest".
So basically you are noting things in shorthand so you know the type of opponant you face.
If you wanted to get more specific, i would get into HEM and do a detailed analysis of how he plays postflop, preflop etc. So if you view his hands and you notice he tends to bluff catch alot, you can note that and use it in game.
But overall you don't want to be cramming useless or semi useless info in your notes, it's hard to use it in game, and people will change the way they play a certain spot alot of the time.
Lastly, make sure you note when you took the notes (im pretty sure stars does this now automatically) and if your notes are old and you see some differant type plays, you need to disregard your notes until you form new reads.
Since you are playing STT, try not to note too many random players unless you see them in multiple games, you can simply color code bad players and go from there without taking time consuming notes because the chances are that you will never see them again and thus the notes you take will be next to useless.
Color coding by player types is a really great way to quickly mark bad/good players, you can do this simply, or you can do it into more specific colors like loose/aggressive tight/passive color codes etc. This also serves as a really great way to table select.
I used to mark bad players green and good players red, so i knew to either join or not join a particular game.
hope this helps