The intermittent DMF clicking ?

Just continuing my discussion of having noticed early sign of possible DMF issues, does anyone have any idea how to gauge the urgency of the possibility of DMF failure having observed it intermittantly/very occasionally ?

More often than not it seems I am just not hearing it, so I can't even take a video to clarify the extent of the noise to be honest, and not currently a driving issue either

So for the moment should I not worry and wait until the clicking becomes more consistent at least? i.e. before it fails (assuming Im driving normally) there will more clear signs prior to failure than the occasional wee rattle that most people wouldn't even notice anyway.