I’m using very good stuff as it is....not about to spend any more money....I think I’ll just deal with it. I’m not in the camp of mortgaging my house to buy audio equipment lol. My amp is 3 grand, my phono amp is 700, yes the speakers are only 500 but imo very nice ( mind you I also have harbeths @ 2200 & spendors @ 1600.). And my cables were not cheap either. My turntables cost 1500 × 2 (project and music hall mmf7, no slouch) and 1200 for the thorens....so yea I think I spent enough. This does not even include all the cartridges i own and headphones and associated amp(s) and dac and sacd player, and cassette decks etc etc etc, oh and media ......cd...lp....cassettes etc. I mean how much more can ya spend before your wife begins scratching her head and then says well weren’t we supposed to take kids to Disney? Lol.....the sibilance is there and is embedded in the grooves. There is no way of getting rid of it period. I’ll send any one of you my Louis prima record on me and u will see what I mean...it is atrocious! Yes, i agree you may be able to lessen it to a degree by spending more on a line contact or shibata or whatever. My eroica h is an 800 dollar cartridge with a rather nice line contact stylus and I still here it to a degree, it has not magically made it disappear. Also, it is very hard to quantify the severity on a forum as I or you are not directly listening to each others set up. Thus maybe i am exaggerating what I am hearing or you are maybe not as sensitive to the sibilance...who knows really. I understand that Fremer spent over 30k for his current turntable with 2 arms....is that what it will take? LolI agree that one shouldn't have to spend so much for a great analog rig, but unfortunately that hasn't been my experience. I started with "budget" tables and carts, like the Pro-Ject Debut Carbon and 2MRed/AT95e. Fast forward a few years and I've finally settled on an analog front end that was ~ $5K total. I found that new tables I considered in the $1200 range still had atrocious platter and motor-pulley runout, and/or bearing play in the tonearms. One $2500 table from a popular U.S. brand had loud platter-bearing noise. There's no excuse for these failings in even a $500 table IMO, but that's what I consistently encountered. I finally have a rig that exceeds the SQ of my digital setup, but I honestly think it absurd that I had to spend that much to arrive there.
Anyhow, I wasn't alleging your problem is lack of expenditure, just that elliptical stylus profiles are probably the worst for mitigating sibilance - even worse than the cheaper conical type IME.
I've also found that exacting cartridge setup can pay huge dividends. If You're using something like the typical two-point protractor, it might be worthwhile to invest in a Mint LP Best Tractor, or try the free arc-protractor software from this site:
http://conradhoffman.com/chsw.htm
I achieved better tracking and overall SQ using a printed arc protractor from that software. I find it works even better than some of the expensive Dennesen-style protractors.