Ortofon SPU with 12 inch Jelco arm?

@mid40sguy i hope you already checked this SPU thread:
https://forum.audiogon.com/discussions/recommend-which-spu 

The problem is that SPU only comes with Conical or Elliptical, except one model called Royal GM and Royal G MKII with Replicant 100 Stylus. In shape, this looks about as much like a cutting stylus as you can get without having a cutting stylus; it appears to be a true line-contact tip, and its specified dimensions indicate that it is a very thin line. It's huge upgrade over the oldschool SPU with conical or elliptical styli.
Ortofon Royal G mk2 is the best SPU in my opinion.

If you don't use styrene pressing (vintage 45s). The Replicant 100 is the best for used/worn records as this is actually a true Line Contact stylus.

But you can check some other cartridges (even MM) with Line Contact styli such as Stereohedron, Shibata, MicroLine and Micro Ridge - this is how it looks under microscope. 

A friend and me have compared a couple of different SPUs
in the last couple of months.

First the match of a Jelco 12" and a SPU with G-shell is a very
good one. This is due to fact that the Jelco is built for a distance
(headshell base to diamond tip) of 51mm which is exactly what
most G-shell SPUs have.

Secondly you can balance the weight of a SPU with the counterweights
easily.

Thirdly in our experience the SPUs give a great value for money
plus they are outstanding in playing old analog recordings. 

Our current favourites are the Synergy GM if you use a "normal"
phone stage. It has an output of 0,5mV at 5cm/s and sounds
extremly sweet, involving, and "SPU-like".

If you use a high gain phono stage or a SUT (step up transformer)
my recommendation would be the new SPU #1 E GM. It gives you
a real impression of the very special SPU-sound for a really good
price tag.

@racedoc

Thirdly in our experience the SPUs give a great value for money
plus they are outstanding in playing old analog recordings.

Could you explain why do you think the elliptical profile is outstanding in playing old records? Those used records have been used in decades in the 50s/60s with conical and later in the 70swith elliptical stylus. Then you track them again with the same type of styli, do you think it’s a good idea? What is the benefit of this generic profile paired with low compliance SPU (with roller off frequency) for those wonderful old records? The Line Contact styli not only sounds better, but they are extract the information from the groove walls previously untouched by the conical/elliptical profiles! For vintage vinyl Shibata (or any Line Contact) is the best profile, but not the elliptical. Was it your friend or you (persionally) who compared the different SPU? My opinion is completely different from what you said, the Royal is superiour even compared to SPU Spirit Ltd and definitely superiour to classic elliptical SPU.

I found the conical/elliptical classic SPU not involving at all and the cartridge (another low compliance) which is much better in everything compared to them is the Fidelity-Research FR-7f.

Hi chakster,

this mainly has nothing to do with the stylus tip.

In my opinion (and many others) the tonally fingerprint of SPUs
really is exceptional fine for older recordings and many new ones.

This is a matter of tonality and recording equipment.

And in this aspect the SPU Royal is maybe a modern SPU
variant but it looses the SPU strengths without matching
e.g. my ZYX 4D or other modern cartridges.