Danny asked me a question at the winter event I couldn't answer..... So here is your answer Danny - striaght from Ninja-
That’s our new style bonnet called the Dualie Bonnet. We found that some players will blow an oring while they are out playing out in the backyard or at a field. If the player blows the main oring and doesn’t have a spare or the field that he’s playing at doesn’t have spare orings, the player would normally have to pack up and go home. On our new bonnet, the secondary oring is functional and will continue to hold the pressure and allow the player to continue playing. You also received the new Gen II piston in that regulator. We added another oring to the piston to help prevent leaks and to also give the piston more stability inside the reg. We also tapered the piston near the ball seat to allow better airflow at lower pressures in the tank (helps with drop off with lower pressure in the tank). Oh and we also went with a counter bore port where the pin valve sticks out of the top versus the cone shaped port we used to use. This will help with markers that have an on/off or ASA that starves for air. That counter bore holds move air volume that cone shaped ports and should help take care of problems with certain markers that can’t get enough air inside of them due to the ASA or on/off.
Once owner of Field51
363 Mosher Road
Gorham Maine 04038