Lightroom/ACR colours for Leica M8

Question

I am (and have been for a number of months) trying unsuccessfully to obtain good colour with both LR1.3.1 and ACR4.3.1 with DNG files from a Leica M8. I have expended many hours running calibration routines (Thomas Fors and Rags Gardner's scripts) to obtain settings for the 'camera calibration' module.
Yes I know that colour is a subjective thing, but the colours which routinely come out of LR and ACR are not credible as opposed to incredible!
Since the Leica M8 was calibrated by Adobe in ACR 3.6 I believe, there have been a number of firmware updates for the camera and the majority of owners are using the IR cut filters to control the sensitivity the camera has in that part of the spectrum. Options exist in the camera menu to select whether these are fitted or not. They make a significant difference to the look of the image and therefore the settings needed by the RAW processor.
How would it be possible to request that Adobe recalibrate the Leica M8 with and without these filters in place and update the algorithm settings which the user is unable to adjust in both LR and ACR? I am not alone with my dissatisfaction with colour integrity issues being widely reported by many other Leica M8 users on web forums.
The Leica M8 camera is popular, selling far more units than was expected and probably has a disproportionate number of pre-eminent users; therefore it would seem justified to ask for the re-calibration to be carried out. If Adobe cannot do this, does anyone know how users might be able to effect this task?
If I use Capture One, then I am able to select a range of ICC profiles and easily obtain wonderful images, although the 'canned' Generic UV/IR filter one works very competently indeed. The 3D colour space being adjusted in the Adobe colour engine by just 6 single slider for Hue and Saturation in each of the R, G and B channels is too simplistic and these adjustments cannot be global across the whole range of tones and expect to get commendable results.
Many thanks
Baxter

Answer 1

Thanks Richard
I downloaded them and read the feature on which they are based. Essentially it is what I have been doing to date. The settings there are probably more extreme than those I have been using in terms of saturation.
My understanding is that LR/ACR identifies the camera name in the Metadata and then goes to a conversion routine/look-up table using hard-wired parameters which are based on Adobe's tests on those cameras. The presence of the IR cut filter makes a big difference to the look of the image. Thus I believe that the calibration for this internal setting mechanism needs to be amended after the camera has been reassessed.
Accepting that Adobe have assembled major players to help devise the way in which to convert RAW files, I am not saying it will not work, just that the output for this particular camera is awry. It may be that other camera types produce good colour from LR/ACR on account of their calibration. Maybe not, are there with Capture One experience who also find the LR/ACR colour conversion lacking in comparison?
Baxter