Re: Pragmatic Play slots or Stake never surprises me for the bad
Thanks for the information @OP, this can help other people to not play Pragmatic Play slots on Stake, remember I'm not saying to avoid Stake at all cost. 
I don't think it's difficult, just read the description.
Personally, I've noticed that RTP can vary greatly from platform to platform and it is often difficult to know why this is so.
Yeah the RTP rate are vary from one to another casino, I think the providers offer a vary RTP rate like 90%-97%, then it's back to the casino which RTP rate they will choose to be in their casino.I don't think it's difficult, just read the description.