If i offload my sdhc cards on location, i offload using a kensington adaptor in my laptop express 34 slot, which is faster than offloading sdhc in the sd slot,however,the chances are my client brings along a portable hard drive and then plugs that into my pc usb socket, so there's still the usb bottleneck.

If i offload a proper sxs card via the express slot into the clients hard drive it's not gonna be any faster because the protable hard drive is in the usb slot, so still there's the usb bottleneck.

Paul.

If you're using a Macbook Pro for input via Express 34 slot, you can run FW800 drives for primary and backup storage and thus avoid the USB bottleneck altogether. Obviously, if you're not in a hurry, USB is fine, but as I mentioned before, time is money, when there's a client, a crew and a sunset approaching.

Looks like Delkin just released some new cards that might speed things up a bit for SDHC users.

DV - Digital Video

16gb cards for $100, NO THANKS! I can get Transcends for $28.

Maybe they are now fast enough to allow overcranking? Dunno....

I'll never need them since I don't shoot in 24p but even still, I don't think the cards are the bottleneck.. it's the usb drivers on the EX cams..