The Wing Force by Yomega is an aluminum yo-yo first released in 1998. One of the first modern metal yo-yos, it was Yomega's first metal butterfly-shaped yo-yo, also one of the very first powdercoated (rather than anodized) aluminum yo-yos. Publicity photos from Yomega showed the Wing Force in black, white, and silver. Only the black and white versions made it past the pre-production stage, with the latter having had a limited run. It sold for around $40 USD, a very good deal, considering the retail pricing of other metal yo-yos on the market at the time, such as the Tom Kuhn SB-2, ProYo Cold Fusion and even the SuperYo Samurai.
The original version had a reverse (recessed) starburst response system that had caused patent issues with Playmaxx. Because of this, Yomega redesigned the Wing Force and replaced the reverse starburst response system with a series of concentric rings machined into the surface around the area of the bearing.
In later versions of the Wing Force, the area around the axle was machined away entirely to allow for the same removable spacer system as used in the Raider.
The last Wing Force variations had an even larger machined pocket which accommodated a wide spacer system that predates Buzz-On's SPR spacers and used Custom Products' Performance Ring response pads. Rather than machining a new design from scratch, these later editions were made by taking unsellable original models with the reverse starburst and machining it away to form the pocket. Signs of the original starburst are sill detectable on many of these editions.
The Wing Force did not prove to be a very popular yo-yo, due to having a smaller radius and a much slimmer profile than most other yo-yos produced during the era, the latter of which not being too ideal for string play. In addition, its string gap width was narrow for a yo-yo of its design, and as a result, it proved to be too responsive for string tricks. In addition, the finish on the white version was too thick and made the yo-yo less responsive, in addition to the finish on the black version being too thin to be considered smooth.
Despite its unpopularity, the Wing Force had, in fact, contributed to the rise of the modern version of 3A play (string tricks with two yo-yos). Mark McBride had used two Wing Force yo-yos to invent the Velvet Rolls trick. He himself had also mixed the halves from the white and black versions to get the right feeling.