Take a look at my 1000e F/R plots in the Near Zero Capacitance thread.
I've measured the 1000e/N97xeSAS and the Me105p/N97xE-SAS combinations - testing them at a range of capacitances and resistances.
The point being to identify the electrical and mechanical behaviour.
Using modeling we get a clear idea of what the electrical behaviour should be (well at least roughly - there are some unexplained small non-linearities that are still being worked on.... )
The difference between the model and the reality is a combination of mechanical resonance and electrical non-linearities.
Most of the data is posted there including the plots.
What these have exposed is the cantilever resonance (very obviously!) - when you deduct the electrical response model from the measured responce some aspects of the delta plot vary with R & C - these are the electrical non linearities that are still to be explained - but the resonant peak does not vary in frequency - and it's magnitude remains similar regardless of the other parameters.
So to answer your question: I know because I measured it.
And yes I found this very disappointing, and totally unexpected - I was expecting to have to get fancy, and run test records at 45 rpm (and EQ for RIAA at 45rpm...) to reach the frequencies where the M-Resonance would be visible.
Unfortunately the m-Resonance became visible in the initial run of cartridge loading tests.....
I also talked to Ed Saunders about this, and he mentioned that his stylus has a slight resonant peak around 11kHz.
A slight resonance at this frequency would compensate for one of the very common MM non linearities - a slight droop at around that frequency - varies a bit by cartridge design, but tends to be around 0.5 to 1db. So Ed's design provides a very neutral response in this very audible range due to this resonance.
The resonance will however also have a phase effect, which is far less obvious, and may influence frequencies beyond the peak itself... I don't have the tools to measure phase - so this aspect is speculation.
I made the assumption with the SAS stylus and was proved wrong - at this point I therefore assume nothing - regardless of the material and design of the cantilever - without better information.
The V15VMR used a tensioned wire at the back of the cantilever to control and tune the resonance - the SAS does the same, but Jico have not stated how the SAS is tuned, nor have they stated whether all SAS styli are tuned the same way, or whether the tuning varies for differing cartridges.
It is of note that the resonance of the N97xE-SAS appears to be quite close to the resonant frequency of the original Sure N97xE Stylus - so they may be engineering the resonance to match the original tone. (anyone want to lend me another SAS of a different variety to test and check?)
I also e-mailed them a question about this, but never received a response. - If as I believe to be the case, it is tunable, you could potentially order a "custom" SAS stylus with the Resonant frequency adjusted to where you want it. (which would allow optimisation of Capacitance/Inductance/Resistance and Resonance as a complete system in a manner previously only possible to cartridge manufacturers).
But like I said - no response.
bye for now