Will be interesting to hear the Ikeda mono. Audioquattr has it on the Ikeda.
It is fine to have multiple arms if the owner wants to experiment, and the expense is endless, but here the thread was asking for a 50k rbounded recommendation.
I do agree that best arm match is required to be found, so I am not a fan of having 4 of the same arms and just rotating carts across.
Someone like Fremer who reviews everything on SAT, and now a Schroder arm not known to anyone else, is going to find it hard to relate to the usual arm cart matches.
Ideally, one would need a linear tracker, 2 of the three of the pivoted tangential trackers, 2 expensive arms like Primary control field coil and SAT, couple of commonly used mid priced arms for general compliance medium weight carts, and couple of those heavy arms. Plus rotate some arms in and out
- have headshells and SUTs to match.