PGA970: Syncing reads

Part Number: PGA970

Tool/software:

I understand that using the SPI and not the internal processor that syncing the reads is not possible. do you think that one of the following methods will work. Method 1. reset the demod clocks, srat them, delay 256us then read the data quickly. Or. 2. read quickly 2 twice and check the high 16 bytes are the same, if not read again as the third read should be stable with read 2. Both methods can use only 16 bits which is good for this application. Your thoughts would be good to know.