When I was grinding the Sit ‘n Go’s I noted just about everything, in a lengthy shorthand, even including every single hand every player showed down, and how they played.

In the Sit ‘n Go’s, I was often quite proud of my ability to read my opponents, and that in part was probably due to my excessive notes, which likely speed up the process of getting a feel for the game.

Since starting cash however, I’ve changed my strategy completely. I only note key hands, and how the hand played out. A few things I might note is players who min-raise with aces, players who min-raise with junk. Players who re-raise on the river with the 3rd nut etc.

Being aware of the regulars is a good tactic, I tend mix up my play a lot more if I’m playing against someone I see frequently, though thats in the cash games.

Best of luck