well, the wheels are working, but in 5 spins on each wheel for a week now its giving me only troops and other green crap i dont need. not EVER did i get an epic approval or gotten close to it. im loosing my interest in the game fast if i cant get to better heros easier. no fun to spin the wheels because you know for certain there wont be a heroapproval in your bag.
will be sad to loose my interest in the game over such a thing.
please consider this for future events please
Wheels have never had a high success rate for getting Approvals. The chances of getting an Epic approval on the wheels is actually very low. Some people do better then others but for the majority of wheels you will only end up with Green stuff and maybe a Warlord item here and there.
Even if you spin them using gold each time your success rate is very low. You have a chance but not a very good one. It's just how it's setup, nothing that Dredd or Memphis can do about it since the developers design the Event.