SF11 Lidar working over I2C w/ 3.7.1?

Due to I2C sonars no longer working on the second I2C bus of Pixhawk 2.1 (https://github.com/ArduPilot/ardupilot/issues/5831), I just purchased Lightware SF11 lidar units for my planes. I set them up using instructions here: http://ardupilot.org/plane/docs/common-lightware-sf10-lidar.html

However I am getting no rangefinder readings at all with these settings. I tried multiple planes, multiple SF11’s, double checked my connectors, double checked settings, connected direct to I2C port and tried splitter (my airspeed sensors work fine). Does anyone have Lightware units working on I2C with pixhawk 2.1?

It seems some folks in the Copter section have things working so I posted this here instead of PH2.1. Thanks.

My setup:

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I think that not only Maxbotix I2C but SF11 will not work due to similar problems.