does anyone have any experience with these? you know the ones from hong kong that you can get with two knock-off batteries for like $50? i know it seems silly to skimp on a grip for a $2000+ camera, but just wondered if anyone had any experience using one of these?
the grip lived on my xsi, but i found i often didn't use the grip when i had my 5dc, that's why i'm hesitant to spend the money for the actual canon one.
also, is there any concerns with using off-brand batteries? what's this 'decoded' business i see?
thanks!


