Great shots Stu! You're putting those ND's to good use.

Wow! Really nice work.

Not sure what that filter does, but I know I have a new wallpaper on my laptop

Man those are sweet.

I was under the assumption that the primary use of an ND filter was cut down on the amount of light, so a person could use a slower shutter speed and therefore be able to blur moving water.

Your assumption is correct Mike. With the exception of #4, the images depicted in this series is a good example of what you are referring to. The 4th pic was taken with a 2.5 second shutter delay. On the other hand the last one was captured using a 30 second shutter delay.

Excellent!! Love the colors, the drama, the rocks in the water add so much to some of the comps, great use of slower shutter speeds. Number 5 and 7 are really exciting.

WOW! That's one awesome series!

Great series! I could pictures these in a coffee table book.

I really like 1 & 4 but everyone of them are very good.

Sweet!!

I like them all.