Power Steer with p70Rs and Seastar Smartstick

Just picked up the RM EV-150 Autopilot System for my boat and preparing to install. While reviewing the p70Rs manual, it states that "Power Steer mode is only available on vessels fitted with a rudder reference transducer" under the notes for Pilot Modes. I have twin outboards. QUESTION: Will the p70Rs be able to use the input from the Seastar Smartstick (Model AR4502RM) as the rudder reference for "Power Steer" where I am able to use the rotary controller or do I require a rotary style rudder reference transducer (shown in the system diagrams in the p70Rs manual)?

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