pity, It would be interesting to see how many users are actually using Locus gesture as there has been so little comment
I also use gesture for display on/off all the time when riding mtb with my Sony Z1 Compact. The single wave detection with current non-BETA versions is not perfect, but "OK" I think.
Actually, waving in front of the phone doesn't work very reliable for me, I have to wave pretty near by the sensor for the detection to work, so I ended up touching the front of the phone where the sensor is located much like pressing an "invisible" button. Anyway, it still is a lot easier than finding and pressing the tiny power button on the side of the phone! So it's ok for me.
I guess the distance for reliable detection might be different with every phone model. Maybe Locus could implement a "calibration mode" for the sensor in order to adept to different phones/sensors?
One problem with gesture control I'm experiencing is it's behaviour in my pocket. When I forget to disable gesture activation and put the phone into my pocket while Locus is still active, I oftentimes end up with the phone in some settings menu or even "writing" a message to someone ;-)
Maybe this could be improved somehow.
I did not have the time to test the modified gesture control with the current BETA, though.