Works with/without OTG on my Nexus 7 Tablet. I did notice some lagging on iOS that wasn't there before though?

But this was in a heavy WiFi use areas, so I'll have to try it out in the country side to really see the improvements? I've flew the Spark Wireless,and with the OTG (mostly with iOS),and can't see any real advantage,either way? I've also used the VR goggles to fly the Spark,with and without the OTG,and get the same results. Using OTG is like wearing dark wool pants, and wetting in them! The feeling is warm and fuzzy, but that's about all!