I don't weight matchups like you do, because I know I would be doing something wrong and I would generate poor information to take deiciosions. That is why I don't make that analysis like you do.
I prefer to assume that I don't know the shot distribution and work from there.
So, I watch live games in order to understand what is happening in the court to later constrast it with the information provided by the game resume.
One of the main issues of the game resume is that it doesn't provide any meaningfull information about time. What I'm really intrested are the "real" matchups that ocurr during the development of the game. Because, that is what is going to determine what happens or not in a game. Not the game resume.
this is from BB-Forrest:
"..the matchup ratings are a measure of offensive efficiency and will continue to be calculated in exactly the same way. Obviously how efficent you are is a function of who is guarding you, so in that way they are affected by defensive swaps i suppose.."
what i understand from this sentences is; even if you don't watch a game where zone defenses are used, you can have some useful informations about the shots by looking at the match-up ratings because they take the swaps into account..
Sorry, I still can't find the way to see the matchup value of my starter PG against my rival starter PG, my bench PG against my rival starter PG, etc.
Because, one value doesn't provide you that info, right? So, it doesn't tell you the story when considering time, right? Then, game resume doesn't consider time* while viewing the game live it does, right?
*In that sense of time, because it's clear you can see how much time your starter and bech did play. But you can not see agaisnt who, for how long, and what happend in those scenarios.
That is why I argue that game resume doesn't consider time and my claim before it was that while you don't consider that variable your analysis will provided poor(and maybe misleading) information.