eric, that's the one.
one thing to remember, some of these lures that people might say dont roll might not have eyes on them. so, you dont always have as solid of a point of reference to concentrate on to see if that lure rolls and if it does how much.
i usually wonder why people go nuts of top water swimmers that supposedly dont roll when the top half of that lure isnt even seen by the fish below or behind. if the lure rolls you now see that top half color. if you tun the lure to dive a little you now see the top half color. all things to consider when you select your lure colors.
check out the videos of the swimmers on tattoo's tackle for more of what laptew and i'm talking about.
http://www.tattoostackle.com/videos.php