If you have an option to not use CF cards, use them.
CF cards = bent pins = broken things and frustration.
All I use is CF cards. I have never bent a pin... I don't know anyone who has bent a pin. You would really need to mash the card in improperly to cause any damage.
If you plan to shoot bursts get a couple of fast CF cards. My 5D3 only bursts at about 6 FPS and it is HUGELY noticeable if I am writing to CF or SD. Also, if you are not in a hurry you could wait until SanDisk or Lexar has a rebate or sale. You can save a ton of money this way.
Just remember that this camera will shoot 10FPS. You will fill the buffer in no time at all if you are writing to SD.