PS...I didn't think they were definitive/100% about it working. The word 'should' was in there somewhere based on the thought that they hadn't changed anything.
Rhonda said the code appeared to be working properly also though but I don't know if that was based on a definitive check.
As Frank has mentioned, Meridian undertook from the January (or was it June

) CES Q&A to check into the code behind Trifield based on the feedback from here
However, as Nick mentioned above, I also got the distinct impression that while they had considered it, it had not exactly been an exhaustive study to determine if there had been changes
We all suffer from Selective Amnesia from time to time, but I certainly think the consensus here is that the Width setting in Trifield, does not do what it did a few years ago and with DSP speakers (not just Analog)
Personally, I cannot say that Trifield performance suffers as a result, as I always seemed to prefer Meridian's default Width setting anyway. Anything else seemed to alter the sound in a negative way (to my ears of course)
Confirmation from Meridian would be useful, no doubt