I looked at both the Gunners Up and Zinger Wingers. Read the reviews of the GU. Good price and the release has been reworked. However folks still report problems with firing 209 primers. Several reviews mentioned need to "upgrade" pulleys. GU now offers that option for an additional cost. The upgraded release and pulley makes the unti price close to the price range of the Zinger Winger II manual or remote model. To be fair, you could say the GU model should be compared to the ZW Field Trial model.
When it was all said and done, I bought 2 Zinger Winger Field Trial models. Paid a little bit more no doubt but they work perfectly. I can use 209, 22 or 32 blanks for sound flexability. I worry only about training and not getting my launcher to do what I need/want it do.
FWIW
