This upgrade is part of the recommended builds.
Originally designed to open on down strokes and close on up strokes. The suction created by the T-valve is now being used in multi axis scripting and will open and close based on the action in the scene. If you aren't running a multi axis script it can still be set to automatic.
Designed by TempestMax please support him on his Patreon. He is great about releasing new content regularly and improving upon his design based on our feedback.
Not needed to operate OSR2 or SR6.