Very gross numbers, full 9 seat table;
80% +/- of our hands will be PF folds (easy to say 85% here). They played themselves.
2% will be PP above 99/TT which pretty much play themselves.
Leaves 15% +/- of our hands that we would/might be involved in without a tracker/HUD.
Of these, perhaps 5% might be affected by some info we glean via a Tracker HUD. Much of the info would have been available without the HUD; betting patterns, agro rating, positional observations perhaps some others which are fairly easy to recognize without a hud.
That is not a lot of hands. 1 hand in 20, or 1 hand in a bit over 2 orbits...not a lot.
And of that 5%, maybe half that are hands where the tracker/HUD suggests we fold rather than persue. So, like I said, not as many hands will be affected as we envision will be before we actually start using the tracker/HUD.
And by 'play themselves', I do not mean they win or lose, but rather the progress of the action is pretty much straight forward. In that final 5% of hands the HUD might help us decide we are in a situation to do something other than what we might have done without that HUD. And of course that HUD info is there for every hand.