I'm assuming that the reason people take their P2 cards out of the camera is because they have 2 and are recording to the other card so can't off load the first?
Is that correct?
Thats true, but also. Even if you arent going to be shooting while dumping one, it would suck to have to take the camera back to where all your gear is everytime. With the adapter even if you only have one card, theres no need to lug the camera to your workstation, or lug the laptop to the camera. Someone can use the camera to setup the next shot and get alot more done while dumping the card(s). Its not time wasted.