One of the huge benefits of drone data collection is the ability to process and reprocess the data at different times to obtain specific results.
I have found that it would be very beneficial to have GCP / Checkpoint Planner App.
With a RTK GPS setup on the right sites you can easily set up as many GCP’s or Checkpoints as you want but I have found that if you do some planning before hand and set out your GCP’s and Checkpoints in a grid pattern you can quickly identify problems in your map, and locate GCP’s or Checkpoints with incorrect data. Also you can process different image sets of the map and not have to worry if it will include enough GCP’s and Checkpoints.