I don't know what 3dlut you actually created, maybe the target profile field contained something as default and you created a 3dlut accordingly, but it's sure that you need to create a profile (.icc) file in order to create the linking profile and then the 3dlut.
Strange that dispread doesn't start while dispcal starts... wait for the help of the expert guys...
You have a couple of options to deal with the lower grey area, dark region emphasis, black point compensation, increasing the number of white patches in the testchart and output offsets
I would recommend getting an i1d3 and combining it/profiling with your i1pro to create an offset for the D3, then you can get much better results below 30% grey than you can with the i1pro alone.
Thanks for your response!
In a few days I'll get a colormunki display (I'm over budget now and have time.). Going to try your suggestions.
My jvc hd350 supports deep color. Is it worth the trouble experimenting with 10bit/channel output (some radeon beta drivers have an option to enable it, not just a firepro privilege in a near future)? Does it yield something in a madvr/3dlut enviroment?