What innovative, unconventional cartridge designs can you recommend?

you are correct, I should have said, for PIVOTED arms.

hopefully everyone knows there is no inner skate, thus no anti-skate needed for linear tracking arms, one of the primary advantages, as well as the angle of the stylus is straight/tangential to each and every spot on each and every groove, whereas a pivoted arm, traversing an arc, is wrong most of the time, only perfectly straight at the two null points of that arc.

In all cases, linear of pivoted, tracking at 1.95g is the same amount of friction, so the stylus life will not be longer than expected for a MM, a MC, a DS-W3, correct?

except

I can imagine a case that says Linear Tracking wear is LESS than Pivoted Tracking Wear because Anti-Skate is NEVER perfect in a Pivoted arm, if ’At Best an Approximation’, then a percentage of error could be assumed, which ought to result in faster wear

Anybody read anything about it?

OP, others, sorry, my brain has been stuck in anti-skate for a while now.

@kennyc 

Seems significantly superior to the DS003. The noise floor is lower, magnetic hysteresis is nonexistent, Sonics are neutral

I have not found any reviews so far comparing DS Audio models.  Do you have any references?  Thanks in advance

"effective mass of the stylus is reduced because it does not have to swing magnets, iron, or coils, which should reduce the sidewall pressure."

Why is boron desired/needed?

I was expecting to find lighter tracking, perhaps new cantilevers, but found line contact on boron tracking at 1.95g, and that is what determines the amount of friction. contact with the sidewall must be good enough to read the groove walls, so whether it's wagging an extremely light beryllium light shade or a heavier coil, or even heavier magnet, it's still the flex coefficient of boron ____ (this long) with 1.95g down.

A different suspension no doubt, but it's got to get back in place for the next thing just as it always did.

@elliottbnewcombjr 

whereas a pivoted arm, traversing an arc, is wrong most of the time, only perfectly straight at the two null points of that arc

Yep, spot on there.  We make a huge fuss about getting the Vertical Tracking Angle or VTA right, while seeming to forget that the Horizontal Tracking Angle or HTA is out by up to 2-degrees for most pivoted arms.  Unless I have made a huge mistake, for stereo playback HTA and VTA have identical effects on how the stylus tracks the left- and right-sides of the groove.  Each channel is cut at 45-degrees to both vertical and horizontal, so VTA and HTA are equally important?

Seems Wilson Benesch's investment in remote adjustment of VTA should have a matching investment in correcting HTA?

@elliottbnewcombjr 

Why is boron desired/needed?

Compared with aluminium, ruby or diamond, it reduces the effective inertia of the cantilever assembly, as measured at the stylus.

Tyres wear as you cruise down a straight road, but they wear much faster when you do a lot of cornering.  A heavy limo creates more wear than a Lotus.

A stylus can be subjected to side loads above 10,000-G which I would have thought would chew out the stylus faster than the tracking force