Hi I just have a question about bluff to value ratio.
here are the approximate number of bluff to value ratio

Flop: 2 bluff to 1 value
Turn: 1 bluff to 1 value
River: 1 bluff to 2 value

I know that it is pretty outdated and not perfect since range cannot be perfectly polarized on the early streets and etc.
However, I need to know just approximate number of B:V ratio.
when I watch RIO elite course videos, some coaches still mention about that ratio when they construct their range, so I am curious if those numbers are still usable in the situation where the board is neutral, so neither player has a range advantage.