How do you send haptic feedback to Vive motion controllers only?

We’re using the blueprint below to trigger haptic feedback in the Vive controllers:

So a trigger pull from the motion controller goes to ‘Client Play Force Feedback’ for a ‘charge-up’ effect, then another ‘Client Play Force Feedback’ for a looping pulse effect.We are using ‘Get Player Controller’ to send feedback to the motion controllers.

We had reports that this was causing players with gamepads plugged in to hear the vibrations in their gamepad at the same time as the motion controllers.

How do we send a command to just the motion controllers to play feedback? Thanks for the help.

I would also love this!