I do not know how this inner wheel is weighted.
Yet another Interblock product is titled 'Big Six.' It follows the same rules as the Australian version, except adds two more slices to the wheel titled 'Super Spin.' If the player bets on Super Spin and the wheel lands in one of those two slices on the wheel, then an electronic wheel in the middle of the big wheel will spin to determine the win. I have no idea how they are weighted, so am leaving the return on that one a question mark. The Bonus issues prizes on a separate prize wheel of 5, 20, 50, 100, 250, and 100. I saw this machine at the 2018 Global Gaming Expo. The player must pay a 10% commission on any net win per 'gambling session.' Any break between bets of an hour or more shall end a session and no session may last over 24 hours.
In that game the rules are the same, except: The also have a 'zero house edge' version.
