Mono Reissues and the Conical Stylus


Hi Folks,

Recently I started buying mono reissues from Speakers Corner, Impex, and have recently ordered a few from Analogphonic. They're all of the 'long haired' variety. In the process, I've come to discovery threads where posters claim that the newer mono reissue grooves are cut in a V (stereo) shape rather than the vintage U (mono) shape.
My AT 33 mono cartridge comes with a conical stylus and from what I can tell, so do the better mono cartridges, i.e. the Miyajima Zero Mono. This of course would then create an issue where it pertains to using a conical stylus in a V shaped groove.

Around November, I plan to purchase a Jelco tonearm for my modified Thorens TD 160 and after that, will be looking to upgrade to a higher end mono cartridge. However, I don't see that they're would be a viable solution to the stylus dilemma given that I will only have one tonearm. I do by the way own a collection of early mono records but would like to find a cartridge that better crosses over between my vintage pressings and my reissues. Any help is greatly appreciated. Thanks!
goofyfoot
I am a dealer for both Schick and the GMII so i have some bias but both are great values imho.
solypsa, the biggest problem would be installing either on a modified Thorens TD 145 MK1.
Goofyfoot, Ortofon’s description of the Cadenza mono as quoted by you suggests to me that it is a bridged stereo cartridge, based on the Red. Not that there is anything wrong with that. What I don’t like is their ambiguous language.
’An MC cartridge with such stylus must be retipped every 300 hrs.’

According to who and why?

I don’t own 1960’s mono, just earlier (no shellac) and a few reissues.

Regarding the typical life span of the Conical stylus profile you can read online. This is why it is the cheapest profile. It has the shortest life span, that’s it.  For this reason it must be retipped often if it’s your regular cartridge. 

The modern profiles like MicroRidge on any records (including mono) has the longest life span and much better contact area with the groove walls. This is the most expensive and the most accurate profile (well, one of them actually). 
’Regarding the typical life span of the Conical stylus profile you can read online.’
chakster, I’ve never seen this claim, do you have a URL? Some mono cartridges use a conical stylus because it fits the way earlier mono records were cut. The stylus is still a diamond.