I have four 4GB, and two 8 GB CF cards. The 4 GB cards I use for regular shooting and have been 100% reliable but are getting a little old.
I'm going on a holiday to Japan soon (once in a lifetime opportunity?) and now I'm thinking of using my CF cards in one slot and getting a 32 GB SD Ultra as a backup in the SD slot, for RAW files. Please advise if this is a good idea, and any experience you may have with this kind of set-up. I don't want to loose a single shot - it's going to be cherry blossom season in Japan!
At the end of the day are you going to be loading them onto a hard drive and uploading to the web? It also doesn't sound like your are filling the buffer up, so... yeah... sounds like a plan.
You're right, I'm not exactly going to do any burst mode shooting here - maximum data security is my goal but I don't really want to invest in new CF cards. A 32 Gb SD will therefore be on my shopping list - but please let me know if anybody has encountered any troubles shooting raw to CF + raw to SD!!!