Rocejo,
I'm using n iPhone 6+ on the latest pilot app. I do have hardware decode turned on. My fav stream was set to auto. So I'm not sure the bandwidth I was pulling from the bird. Never ran into any lag or poor signal. I'll upload the map/ route soon.
I also am running an iPhone 6 Plus. Do you notice any difference with hardware decode on and off? I've been running with it off.