I use 2 64GB Komputerbay 1000x to record 1920x1080 at 24fps with my 5Dm3 with no problem, if I try 30fps I get drop frame in 3 seconds or less, and I want to buy mode CF cards, does any one knows if the 1050x or 1066x Komputerbay cards are really faster then 1000x? If it is possible to record 30fps? Thanks