I had a P3A around 7-8 months ago and sold it due to lack of use and some financial issues but I just ordered another one. I already signed up for the FAA registry which I believe was $5 for 3 years. I found it odd that they didn't even bother asking about what kind of device you would be using or anything like that. They basically just wanted your pedigree info and $5. They made mention of IOS/Android app called B4UFly which I d/l and installed. In urban areas, according to the app, there is virtually no where you are allowed to fly. I'm sure all this stuff has probably been discussed to no end but as I've mentioned I have been out of the loop for a while. Just thought I would throw this out there to hear some opinions on this FAA registry, whether you guys are actually doing it, and what are your thoughts on their app (if you have installed and used it) Thanks for any input.