Dear @needlestein : Really thank’s for your knowledge and wide explanation. Your posts really enrich the knowledge level of any analog audiophile in that important subject.
Btw, Allaerts states the use of FG-S stylus tip. I owned the MC2 and Formula One and he states that the " rounded radius " is different for both models: 5 micron and 4 micron, respectively. Both are the top of the Allaerts line and in a two steps down the MC1 has 2.5 micron. Allaerts states that the rounded radius 2.5 micron has a tracing capacity of " 300um " against " 400um " for the 5 micron that in both cases looks excesive but depends how Allaerts measured the tracing capacities for his cartridges.
In the other side in the past Allaerts stated 10K play hours for the top models that seems to me more a marketing tool that a reality. For whatever reason we can’t read it that spec any more in his site. Do you have an opinion on that playing way high 10K hours?
R.