The stat "4bet is premium" needs to be fixed, as it counts every 4bet that didn't reach the showdown as non premium.
For example, if Villain 4bets us 4 times where:
- 1st hand we 5bet all in and he calls with AA;
- 2nd hand we fold vs the 4bet and he wins uncontested;
- 3rd hand we call the 4bet, he 3barrells and we fold on the river;
It will result in Villain's "4bet is premium" = 33% over 3 samples, which is obviously wrong to assume and can be dangerously misleading.
The only non-showed hands that should be considered non-premium are the ones that fold vs 5bet.
So in the example above "4bet is premium" should be 100% over 1 sample.
If we have a 4th hand where we 5bet all in and Villain folds, it's 50% over 2 samples.