First things; regarding fitting of the Onyx arm, because of the thickness of the Nottingham Analogue armboard I could not use a lower locking nut so I had to use a Rega aluminium collar and clamp it from the two side points as in the Rega armboard. It all tightens up fine and there is no movement of the arm pillar. The Nottingham Analogue armboard though is around two inches thick.
I have found on listening a bit more that on electronic music involving a fair bit of filter work that there is a considerable amount of tizz and fizz to the top end. This I know could well be due to the DL103 not matching correctly with the new arm. I love the level of micro detail that the DL103 uncovers but think that I may have to move back to my Benz Micro Silver cartridge. This does not suffer from the same problem and has a very smooth top end. I am also aware that the ambient temperature at the moment is quite cool and this I know does not fare well with analogue playback. My own experience is that things sound very much better during the summer months.
Yes, this tonearm is kind of growing on me and I like the new sound apart from the tizzy and fizzy top end.