It takes about 60 seconds for my a9 buffer to clear with a Sony G Tough card in Slot 1 and compressed Raw file format. This seems almost twice as long as some claims. The test is to shoot till the buffer is full, about 240 files, then time how long it takes until the buffer is clear, that is the led goes off and the files are done transferring. Is there an expected variance in the camera or SD card write speed that would explain this? or do I have a buggy camera or card.