The DTOPS sticker avoids the "10 minute" trek to the airport for C&I on Culebra. It becomes just a phone call. One must walk at quite a pace to make it in 10 minutes (more like a dead run)and note that the C&I office is not manned all the time. There are days when it is not open at all so your "10 minute walk" may not be fruitful. Much better and safer to just get the sticker.
