I got a 178g red pro-d that felt like a soft magnet, and a 181g yellow ESP that has firm rim with soft star-like grip. They flew very straight from 70'-120'. We had one 180' hole in which I threw the ESP on both rounds. The ESP flew straight for 100' then started turning hard left. Overall, they both threw straight for short approaches. They certainly roll forever, people throwing rollers in a nearby field! I didn't throw many hysers during the actual ace race but, I did notice on other's throws that they held very clean hyser lines. It's like others have said, a comet-type approach putter. Nice disc but didn't make my bag, I may re-visit it if I need another slower stable approach disc.
Name suggestion = Nimbus or Cow Patty