Yep, the connectors on those things can have intermittent contact. If you're uploading data to the SD card live while in flight, those intermittent connections

Yep, the connectors on those things can have intermittent contact. If you're uploading data to the SD card live while in flight, those intermittent connections can screw up your data. The workaround is to use a flash chip to write live data to it and then once the rocket lands, dump all of it to the SD card.