Well, to be fair, that CF card's maximum transfer rate is going to be around 9Mb/s based on the description of the VGI CF cards I found on the BestBuy site, versus the 9MB/s rate given for the ATP, so I'd expect things to go at least a TAD slower.
That 9Mb/s translates into 1.125MB/s... so i'm surprised that it only took you 6 minutes to do the transfer on the VGI... :D