Thank you for the research you conducted regarding the Video Poker House Edge, but you are forgetting "Rebet" button. FortuneJack is the only crypto casino offering Rebet after last draw, meaning if you have let's say 4 of a kind after two draws, you can go for 5 of a kind by drawing 3rd time, this increases the chances of striking more winnings, thus lowering house edge to 1.4%.
We have made some mistakes before calculating house edge and had 3 rebet options available for the players, that set House Edge to - 17.2% (negative), where players won around 40 BTC in several minutes while playing with the bug, obviously we payed them out but since then, we decided not remove 'Rebet' from the game, as it makes the game unique in the crypto industry (these winnings were discussed in the thread).
None of the calculators you provided include Rebet option, so comparing regular types of gameplay and payout to the Video Poker provided on FortuneJack, is a mistake.
Thanks for the response and opening my eyes up a bit more. I did not know the rebet option was an additional draw. I assumed it was to place your bet again. And it is a very unique option.
What cards does the rebet draw from? All remaining and discarded? Only remaining? or a whole new deck (which would make card duplication possible)?
I will re-run the numbers once I understand it fully to post my actual findings.
Through my playing I discovered it costs an additional 2x the base bet which effectively reduces the pay table to 1/3 of the value. This is because you do not win for both hands drawn. You only win for final hand. You mentioned changing the times allowed to rebet/redraw before because of the negative house edge, but from reading the posts at that time, you also reduced the royal flush payout from 500 to 300 (possibly others?). Other payouts are severely handicapped and I am not seeing how the rebet option can overcome this to such a great extent to get to the 1.4%. At face value, it appears to be more of a house advantaged prop bet except in very limited circumstances. For example, at quick glance, I do not see it ever being profitable except on the pay table from 4 of a kind and higher, possibly only straight flush and higher and only in very specific situations and depending on the answer to the above questions.