i havent had a slot 2 in a while. cause i gave it to my cousin for his birthday. but i had an M3 CF. i can only recomment getting an M3. i know its kind of vague saying that, but you should ask mr hanky as he will have a lot more information for you.
It's been a long time since I last dumped a game, but if I remember correctly an M3 CF with the WRG dumper was the best way to get things done. I was a one-man release team at one point, probably the only one with a %60 nuke rate.
well. not necessarily. cause you need the passcard to flash the ds in the first place. but after you flash, you wont need it anymore.