GTech - Free Spins with Stacked Wilds
This is typically a separate set of wheels where you get 10 or more free spins and the whiles are stacked when not used. The great part is that when they DO get used, you then will get each wild in the stack for your win (meaning - if you have 3 symbols and a 5 stack of wilds, then you would get a win equaling 5 times 4 of those symbols!)
