A Decca needs to be well fettled before it casn sing. Tracking has never been a huge issue, even with a conical tipped Blue I once owned and used in a Dual 1229 once (at 2.5 grammes approx as I recall).
My Gold Micro-Scanner was sublime to start with and very close indeed to the master-tape copies I had, the nasal "snap" as the stulus hits the groove very much tamed on mine, but it only lasted several months before a terminal vibration on sustained piano and guitar ruined it. It lay fallow for fifteen years before I had it repaired by an ex-Decca man with all the tooling (courtesy of Mike Harris at Moth Marketing). It now awaits the day when it will partner a "real" turntable again.....
By the way, the transients of ticks and plops when played via a Decca (well over 100mV I understand) will cause overload and some oscillation of many phono stages, so a valvey one with huge overload and/or soft clipping is strongly recommended.........
Tear down these walls; Cut the ties that held me
Crying out at the top of my voice; Tell me now if you can hear me