Koetsu Rosewood Sig or other Koetsu on medium mass arms

I'm sorry, oh great one, but I still don't know who Mark Baker is, in the sense that I should need to care about his opinion.  Much of what you say he says is much like what I wrote about the uncertainties of the calculation for any private end user, which make the resulting calculated resonant frequency something you should take with a grain of salt, although I suppose he took several paragraphs to say it in more detail. I won't respond to the ad hominems.  Have you figured out the root cause of the skating force yet?

In fact, according to the internet, your tonearm (Origin Live Conqueror) has an effective mass of 19g, so it is on the upper edge of the category of "medium mass", whatever that is.  In fact, can someone define "medium effective mass", for a tonearm?  In my mind, it's from about 10-11g to about 15-18g, but I have no idea what other people are thinking when they quote the term "medium mass".  Regardless of the jargon, the resonant frequency of your OLC plus Koetsu should be well within the recommended range of 8 to 12Hz, so your combo sheds no light on your claim that the relationship is unimportant.  Maybe it is; maybe it isn't.  I don't assign too much importance to it either. 


I have no idea who Mark Baker is, but the calculation is theoretical, because in fact we usually don't really know with any degree of accuracy what actually is the effective mass of our tonearm/cartridge/headshell hardware or the compliance of our particular cartridge sample.  (Compliance may change due to age and use of any cartridge and due to sample to sample variability.)  In that sense, the result of the equation is theoretical.  But the equation itself is solid physics.

I don't know that it has strictly to do with the formula for resonant frequency, but my Koetsu Urushi did not come into its own until I mounted it in a headshell/tonearm with much higher effective mass (Ortofon LH9000 that weighs 18g by itself, on a FR64S tonearm).  Prior to that it sounded good but not transcendent on my Triplanar.