Apparently you didnt get the memo how to read either Your ev bb long term
can be higher but so is your standard deviation. That doesnt mean it is if you are doing poor adjustments as i already said
Since you didnt get the memo let me give it to you
6bb/100 with standard deviation 100
8bb/100 with standard deviation 160
you need double the roll even if you are winning 2bb/100 more
Now assuming in your whole sample you have a mix of tables with 2-3 fishes and suddenly you get 5. Your ''adjustments'' are poor which actually leads to the same winrate but the standard deviation is higher since you have more fishes and more hands will be all over the place
6bb/100 with standard deviation 160 you will need 2.5x the initial bankroll
Got the memo now?