Hello Ken, I was reading your exploits on research of the claims with drones and sympathize with your frustrations. If I may be so bold is to ask what brand were you using. I have a dji spark and was a little hesitant to use it in the desert to research the claims because of the same problems you stated in the pick and shovel gazette. You can PM me if it is out of order to ask you questions of paticular products that you use in the field. Thanks for all your work here at GPAA.