Panos, sorry I didn't reply sooner. Like every photog in Hawaii, I shoot lots and lots of color but there are times you just want to go after elemental shape and contrast in a shot.
Beeze, great scenerio Brah!
David, thanks for the comments as well. There is quite a lot of contrast in the clouds actually. Maybe just a monitor thing.
Fred, glad you liked the 'conversion' but I was thinking and shooting intentional B&W this day. I believe you visualize differently when shooting B&W. I was shooting my 12-24DX with a polorizer. That combo creates pretty contrasty images that scream out B&W especially for cloud formations. I also had the S2 set up to preview in B&W and so never really looked at the color versions in the camera or converter.