In the height of the yo-yo boom in the late 1990's, Custom was sued by Playmaxx/Proyo for infringing upon the Brake Pad patent. The alledgedly infringing system was developed by Eric Wolff, who had modified a fixed axle Reactor into a ball bearing axle yo-yo with response pads made from a Rubbermaid no-slip bathtub tread strip. Eric's design was incorporated into the Modified-shaped Chain Reactor, and eventually, all of Custom's ball bearing yo-yos.
After a judge ruled against Custom, they reached a settlement with Playmaxx agreeing to redesign their Performance Ring pads.
The Playmaxx Cold Fusion was actually manufactured by Custom for Playmaxx, and all Cold Fusion parts both finished and unfinished had to be turned over to Playmaxx as part of the settlement. It was these Cold Fusion parts that were acquired by Duncan when it purchased Playmaxx and once this supply of parts was exhausted, the Cold Fusion was discontinued by Duncan.
- Axl Elite
- Chain Reactor
- ProYo Cold Fusion series (for Playmaxx)