this thread is like 9 months old buddy. he's not gonna respond. anything but low resistance cartomizers will work fine. to be honest i'm not sure why it's recommended to not use low resistance because i use them on mine with great results.
i got a cheap little 808 passthru and to be honest i've been nothing but impressed with it. 12 bucks at electronicstix.com
that being said, i think there's alot of user error when it comes to passthru's. i mean, they're small, thin cords, you would think it would be common sense to NOT yank on them while they're attached to the computer or wherever or yeah obviously the cord's going to de-tach from the pv.
just my .02