Advantage play slots are my favorite. For those who remember, they actually started back in the 1990's with WMS Piggy Bankin slot game where you can scout which machine had the biggest "Break the Bank" coin jackpot and then simply play one quarter to try and just break the bank. There are a few out there as mentioned in the previous posts. The most obvious ones are the "Must hit by" slots as they approach their logarithmic maximums. Most "Mini" slot jackpots, like the Gold Stack games, can be advantage played as those are the ones to hit most often when you enter a bonus round so a build up of those jackpots. Any of the Lightning Link $1000 majors that are built up from their $500 reset gives you a slight advantage.
If you want the biggest percentage progressive build-up we have ever seen that has not hit in years, then Atlantis Reno Triple Butterfly is worth a try:
$1.80 a pull for a
$294,000+ jackpot and a reset of only $900 !!!!! (its probably a positive return game if you factor the max play jackpot into the base games programming). I've played it many times and I am sure they will discontinue the game once it is hit as it is so old. Here is the proof that this is not a typo:
https://atlantiscasino.com/casino/ga...ssive-jackpots