So I finally understood today that high rolls are actually based on the loss/win amount, not the size of the bet placed! That does explain why I didn't get in on some value losses that had otherwise entered earlier when I won at higher multiplier.
Hope you understand after reading this:
On High Rolls section (this is where the discussion really is about) 1. we show big profits regardless the bet size and 2. we show bets from a certain amount or above, regardless the outcome.