Alphason HR100 MCS tonearm / Linn LP12 - cartridge suggestions?

Starting a new post for this.

I have this tonearm on the way all being well.

To go on modded LP12 -
Mober one piece sub chassic, sub platter, DC motor, tranquility.
Going into a valve phono , pre and GEC KT88 main.
Feeding rebuilt Gale 401s updated with external crossovers plus an active sub.

The change in arm is so I can try a different cartridge.
I have recently being using a Shure V15 Vxmr / project 9cc which is good but I think there is more yet to extract.

The London decca super gold interests me although I know historically that divides opinion, maybe because of experience of earlier production.

There will also be MCs but to consider those I would have to find a suitable SUT at a good price.

I want to get those gales singing like a live event while not crossing into a fatiguing presentation that cannot do delicate also.