Glad to hear that the HCHP works for you, Greg; sounds very nice! I only had the samples of HCHP and the regular HP2.4, and I backed off the HCHP because in my setup the narrower viewing cone lead to noticeable lack of brightness uniformity over the whole screen from my MLP. The regular HP, though, was completely uniform, and i've been extremely happy with it. (It may be that my screen is quite large, 144" W, so may have made a greater demand on the viewing cone.)
So I would just encourage people to get samples and check all this out for their specific situation.