Larry,
MANY cartridges are unshielded...but almost all cartridges are
overdamped (moving coils from necessity, otherwise they would be
totally intolerable). One pays handsome prices for the handmade MC's as gentle damping (aka, tweeking) is applied by it's master makers. I'm not knocking the breed, I hear the good stuff form them too, I just hear a lot of the not-so-good stuff...as do you, I think, now

The Grado's are
sensibly damped and this causes microphony. Your fluid damped arm trough will tame much of that (as will a dot of 1000cst on the coils)...and the Longhorn (and a line stylus) will make for passable tracking. Damping internally makes for a quieter, less microphonic electro-mechanical transducer, but it indiscriminately damps the music out, too.
I listen to mine a lot and keep asking myself.....'now what am I supposed to be missing if I try a more expensive cartridge'?

I make
zero endorsing them as I do, and I
don't suggest them for everyone...but a fluid damped arm is a considerable help in getting them to sound wonderful.
The Clearaudio's are apparently Audio Technica made...not even the dual magnet series....they are based on the AT95. The very knowledgeable 'mosin' exposed this roose a couple years ago:
http://www.audioasylum.com/audio/vinyl/messages/52/524951.htmlSo if your gonna' go for the AT (no bad choice at all) - go for the AT440MLa or better AT150MLX or go cheap to try it with the AT95HE from LPGear.
btw, price increase on Grado's on February 1

:
Grado Labs Price Increase!
Grado Labs is announcing its very first price increase ever! Effective February 1, 2008, Grado will increase prices on the Prestige Series Phono Cartridges and Replacement Prestige Styli. (This does not affect Grado Reference or Statement Series Cartridges.)
Order Now & Save! Don't Delay, prices are going up this Friday, February 1, 2008 (according to The Elusive Disc)!
Grado Prestige Cartridges (all cartridge prices are listed in black, price increase is listed in red)
Grado Prestige Black $40 Save $20!
Grado Prestige Green $60 Save $20!
Grado Prestige Blue $80 Save $30!
Grado Prestige Red $110 Save $30!
Grado Prestige Silver $150 Save $40!
Grado Prestige Gold $180 Save $40!
Many of it's known drawbacks can be fixed (it's fairly miserable that they must, however, I must admit). But, a fluid damped arm gives you a serious leg-up on the known problems. On my prior JVC, when I fashioned my homebrew trough and filled it with 30000 cst silicone, the Grado zoomed from also-ran to top-o-the-heap for me.
So profound was the difference with fluid damping
