One more for hardi-plank. I just built a 12X20 yard shed and sided it with the 8" lap siding. Piece of cake. I didn't have any shears. Tried a couple of cuts with a hardi-plank blade in a Skil saw and realized in about 3 seconds that was going to be way to slow and dusty. So I used the score and snap method to make cuts. I was surprised at how easy that was. I used an old 4-way file to clean up the cuts and that went quickly also. I also placed pieces of roofing paper behind the joints as outlined in Hardi-plank's spec sheets. Used standard cement board screws from Lowes and then 8d 2" galvanized nails where needed. It looks great.
Tom
Tom