Here's an article that better explains how I expose contrasty film like Velvia on landscapes. Jon Brock uses slightly different values than I do but this may explain my question better.

http://www.jonbrockphotography.com/s...358_25391.html

Assume normal development - being 36 exposure rolls of film I don't usually have the luxury of custom development like the sheet guys do. I rely on my scanner to do the best I can.