Dimond Cantilevers And Tip Mass

Something we don’t see discussed lately is tip mass and how responsive a cartridge is. Now what about these ruby and diamond cantilevers and what the effects of these cantilevers are? The diamond is still mounted to the cantilver with an epoxy, so it is not like the Sony of yore where it was a solid cantilever/diamond piece. Yes the cantilever should be stiffer with them gemstone, but what about at the cost of tip mass and how responsive it is? Secondly how well does the material damp resonances? It seems that in some respects that boron and compsoite materials might have an advantage here.

Has this come up in discussion recently? And have any conclusions been drawn?