I would say the SAS stylus in general,is not designed to be used with any form of damping.
It is imo designed to work as all other SAS styluses for any other cartridge.
I therefore believe it is beter to experiment without the brush first,and if you are not satisfied,try the brush too.
All SAS styluses seem to have the same or very similar suspension,tracking force range etc...
Allow me to extrapolate....
All cartridges with a compliance of 22cu will therefore work perfectly in all arms regardless of mass !?! (damping is apparently redundant under all circumstances?!?)
Any cartridge mounted on an arm where the mass of the arm perfectly matches the compliance of the stylus cantilever will achieve a resonant frequency of around 10Hz. ( I won't even bother to discuss the problems with an imperfect arm/cartridge match )
BUT there WILL be a resonance (at 10Hz), and there WILL be harmonics of that resonance (20,30,40,50 etc...) - and furthermore there will be intermodulations of the fundamental and its harmonics with the music you are attempting to reproduce....
Unfortunately that is the nature of vinyl replay.
The resonance (even when perfectly located) can be DAMPED..... which reduces its peak amplitude while spreading the overall peak into more of a "hump".
Methods include:
1) Fluid trough at pivot end (like SME, or KAB trough on SL1200mk2)
2) Fluid trough at headshell (Townshend Rock)
3) Servo damping (E/M version of pivot side fluid trough - JVC, Denon, Sony)
4) Cartridge Brush (shure, stanton - shure damping is in the hinge mechanism, -Stanton mechanism is via flexing of the long brush hairs.... not as effective and requires proper "grooming" of the brush fibres)
5) Placing the pivot bearings in a damping fluid bath (many arms, including Jelco, JVC)
Possibly the "ultimate" damping mechanism is the Townshen Rock damping trough attached to the headshell.... consensus places this at the top ranks of turntables of the last 20 years (+).
Reviews and designed comments also reflect on the engineering advantages of placing the damping as near as possible to the cantilever/stylus.
All other solutions are 2nd best - the Shure brush does however have the advantage of being right next to the stylus....
How do you justify your comment?
On another topic - I note you have the Jico MM1 cartridge, I have heard that this is a version of the Philips 400 series - do you know whether the MM1 stylus can be placed on a Philips 400 cartridge?
thanks & bye for now
David