i have this one:
$16.47 Trident 24K Gold Plated Rebuildable Dripping Atomizer(RDA) at FastTech - Worldwide Free Shipping
and this one:
$6.72 Trident Foggy Rebuildable Dripping Atomizer at FastTech - Worldwide Free Shipping
i like the gold one very much. my favorite dripper i own. very solid. highly recommended.
i thought the foggy one would be comparable but it is not. first off, both negative posts were messed up when i got it. one was not connected to the base at all and the other was wobbly as hell. secondly, the air holes dont line up for dual coils. third, the largest air hole isnt usable without enlarging the air hole in the body of the atty. but with some patience to receive the replacement, a drill and more patience, i can have the same experience (hopefully) as the gold one.
im not sure how the silver one stacks up, but my guess is that it is somewhere in between the gold and foggy. but it could be identical to the gold. hard to tell.
silver:
$12.06 Trident Stainless Steel Rebuildable Atomizer at FastTech - Worldwide Free Shipping