Hi everyone,

I've been playing around with preflop ranges in CREV recently, but something I'm struggling with is coming up with reasonable 'R' values for different scenarios when I use the checkdown function for postflop play. For anyone who doesn't know, R is the proportion of a player's equity that they can expect to realise for a hand that sees the flop, and is a concept that Sean Lefort frequently touched on in his videos.

The thing is, I'm not really sure how to choose sensible R values for different situations. Take for instance a min-raised BTN vs BB situation, where the players have typical ranges.

What is R for BB when BB flats BTN's min-open? I frequently see values of around 65-70% used.
What about R for BB when BB 3bets and BTN calls?
And what is R for BB when BB 3bets and then flats BTN's 4bet?

I realise that the best way to determine these values would be through database analysis, but I don't think I have a big enough sample size to get accurate answers - at least not for the >SRP situations.

The most obvious factor that effects R is position, but what about other factors?
Is initiative important?
How about stack-to-pot ratio? I would think that R for the OOP player would increase at lower effective stack depths, but intuitively I feel like if I 3b/called a hand like AQs from the BB vs BTN, that my R would be lower than 65%.

I guess the TLDR question of this post would be: are there situations where R for the OOP player deviates significantly from 65-70%?