Sibilance issues with vinyl rig

howdy
I've recently gotten into vinyl, investing quite heavily, and coming away unimpressed and frustrated.
the problem is sibilance...I find some albums almost unbearable, and if not unbearable, not terribly pleasant to listen to. On other albums, there is a sibilant 'cast' - even surface noise, and tick and pops have a hollow, pitched up characteristic to them that is unlike I've experienced listening to other systems. When people say 'vinyl sounds way better than cd's', I wonder what the hell they're talking about, or what it is that I'm doing wrong.
I should list out my system quickly just in case there's some familiarity within the membership and perhaps a quick fix, and also to see where I'm at in this hobby:
Rega Saturn cd player
Modwright swl9.0se pre amp
Cary audio slm 70 mono blocks
Totem model 1's
totem thunder sub
running springs haley power conditioning
harmonic tech cabling throughout
vinyl rig:
vpi scoutmaster with jmw-9 signature tonearm and single flywheel motor upgrade and vpi sds
benz micro ace low output mc cartridge
sim audio lp5.3 phono stage
harmonic tech magic cables (used) between turntable and phono stage, and between the phono stage and Modwright pre (new)...I've noted this as the magic cables are newer than what's in the rest of the system.
The lp5.3 phono stage is used, I'm the third owner
The cartridge was new....the turntable, cartridge and magic cables to the phono stage have about 100-150 hours on them now.
I'm quite happy with the cd playback...the saturn was the best under $5000 player I'd auditioned, save for one, and that is in the company of krell, copland, meridian, etc...so in general the system as a whole performs rather well...and no sibilance issues with cd playback.
I set up the turntable myself, following Michael Fremer's dvd in which he demo'd the setup of a scoutmaster. I do have a nice digital stylus gauge, and have purchased the soundsmith counterintuitive to assist with the difficulty of setting the tracking force/azimuth on this tonearm. I can't say I'm an expert at setup, but in listening there are no other issues (left/right balance, tracking erors, etc), so I figure I'm 90% there.
I've tried every resistive setting on the lp5.3. I've tried lowering the output, but I already need to set the volume at 4-5 out of 10 to get where the volume is equal to what 3 out of 10 provides using cd playback, and it didn't solve my problem anyway (thought the sibilance might be caused overloading the rest of the signal path..btw, the benz has an output of .4mv). I fiddled with vta, and found little if any difference. I meticulously clean my records (most of which are brand new) before playing, put them in rice paper sleeves, and use the requisite record and stylus cleaning brushes...in other words, I'm meticulous and thorough. I listen to a huge variety of music, and have extreme familiarity with some (admittedly not all) of the albums - I know how they should sound...ironically, it's the ones I'm familiar with that bother me the most. I do assume the new components should be broken in by now, and either way, there has been little or no change since the initial setting up.
I've invested a chunk of money time and effort, and expected the vinyl rig to sound at least as good as the cd, but I'm disappointed....would really appreciate any input...help!