Thanks Geoff. I may have to eat my words if I find Enhanced allows 17 to be seen without raising the black floor. 
On a side note: My lux reading has barely dropped at all since it was measuring 100 Lux last night after 102 hours use compared to 102-3 (which is the highest I've measured between 0 and 102 hours). I then wondered if maybe the red had dropped in the lamp, but checking the 100% white balance last night it was pretty much still good (less than 3dE out). I did tweak 100% a little bit (using the JVC RGB gains) prior to the gamma experiments, but I'll run a full autocalibration in a week or two's time since the lamp seems nicely stable now.
These lamps certainly seem much better than the old models from my experience.
On a side note: My lux reading has barely dropped at all since it was measuring 100 Lux last night after 102 hours use compared to 102-3 (which is the highest I've measured between 0 and 102 hours). I then wondered if maybe the red had dropped in the lamp, but checking the 100% white balance last night it was pretty much still good (less than 3dE out). I did tweak 100% a little bit (using the JVC RGB gains) prior to the gamma experiments, but I'll run a full autocalibration in a week or two's time since the lamp seems nicely stable now.
These lamps certainly seem much better than the old models from my experience.
because I do think there is some unit to unit variation. Manni tried Enhanced at one point and found it didn't help much but it did result in a small improvement for me.
I do not have time at the moment to calibrate but a quick look at the ramps shows it's not bad but it could use some grayscale adjustments at lower levels (looks pretty neutral above 50%, less so below that).
