I personally have never won anything good on Deadwood, but that's probably because I played less than 100 spins on it overall. Almost all of them were losing ones or with a small payout. On MT2, on the other hand, I was winning $24 and $18 from $0.10 bet(my highest wins so far), and was also hitting around 50x from time to time. Deadwood is not for me, because I can't stand not winning anything for a long time. 
Most of the time if you really want to see what a real slot is like, and if you will like it or not, drop it to minimum you could gamble and play 10k rounds if you can, obviously sometimes it is too high and you can't play it, but if you can afford to you should do that because under 1k there is no way you could ever understand it, and over 10k you are nearly an expert on it and know every single detail about it, anywhere in between of 1k to 10k is where you go from "finally understand it" to "master" level and many things in between.Of course I have seen (this was non-crypto) slots as high as 100$ bet, that was surreal to me, I probably do not even deposit 100$ in a month, and this was just one bet, that is crazy and if you face anything that is way above your bankroll, or even that might hurt your bankroll, just stay the hell away because they scare me so much like I may lose all I have in 10 rounds.
I don't have much experience with slot gaming, but are there slot games that actually require some strategic understanding or is it all pure luck and it doesn't even matter which button you push?