-- [ Picked text/plain from multipart/alternative ] Bruce: Your density ratio appears to be on the high side looking at your math. A quick look at the documentation I have shows Density Ratio of a k24 @ 2.2PR and 72% CE should be closer to DR = 1.65. Even if you move to a PR of 76% CE, you should get a DR = 1.75 or so. SJ