5 Wilds, payout for 5 scatters is fixed to 500x no matter how many lines you play except you hit 5 scatters on free spins as it gives you 1500x. 5 Wilds gives different payout/multiplier based on how many lines you play. The less lines you play, the higher payout you'll get if you hit it (max 10,000x on 1 line). Talking about the fast/instant spin mode, I prefer not to use it because it is just too fast so it gives less sensation while playing the game.
Is this Scarab slot is a slot that originally made by Stake? I haven't played any original slot by any casino because I think that those slots are less likely to allow us winning a lot. I didn't thought some of them might be one of the best slots for other users. I'm not very old in playing slot, in fact I just played slot months ago, and I honestly do not know any strategy how to play slots that pays per line. I tried some, but I'm unfortunate, maybe because I really don't understand well those types of slots.
I do not even know if they are provably fair or not, I really have no idea, but the reality is that even if they are said to be provably fair I wouldn't play there. I love stake, and I love stakes own games, they are by far the best casino games out there, I am not really that much in love with the sportsbook, but when it comes to regular casino games stake is definitely either the best or at least one of the best hence why I love them.
The need to add a lot more games came out by everyone putting hundreds of games from providers, so Stake probably said why not do that here as well, and even though I understand the logic behind it, I do not play there, I am fine with the OG games of stake and they are already as fun as it gets when gambling, if I ever get bored of them, I just end up gambling on some other place for few weeks and then come back here.