Found the right settings for my gnex with Trinity kernel and Trinity Kernel Toolkit. Went to the trouble of making a reference graphic I can trust in Photoshop. Then it was pretty easy. The main thing I found is that the gamma settings are far too low to see any detail in the near-blacks. Cranked all three gammas all the way up and then everything started to make sense.
contrast about -10
cab off, spice off
gammas all on 20
multipliers all on 150
Simple as that. Looks excellent. White whites, black blacks, gray grays, good detail in the near-blacks and near-whites, colors accurate. Voila!