I have used the SanDisk 64gb Micro SDXC UHS-1 Class-10 card with great success. Claimed write speed is "up to 60MB/s**" but it all depends upon the X3's or other device's transfer rate.
Question: With all of this going on, is it wise to continue filling out my 333 request, or will it be of little use given the upcoming registration rules? I am still flying, regardless, and flying safely.