Mono Cartridge

Chakster is absolutely right. New mono records are cut with modern groove geometry and because the groove walls never diverge from one another the groove dimensions never get as large. Point being is you want a modern stylus profile. If you have seriously old Mono records prior to 1960 or so it is another story but this depends on the company. Certainly you are not going to play 78's with a modern stylus. I have plenty of modern mono records. If you love jazz and classical you have no choice. For the ones I have I am not going to bother mounting and aligning another cartridge. If I had two arms now I would keep a MM in one and an MC in the other so it still comes down to mounting another cartridge. I have heard here in this thread that some keep a cheap table on the side to run their Mono records. Not a bad solution. Since I am allergic to direct drive tables maybe I can find an old LP 12 :)

I am a long time record collector with 1000s of "seriously old" recordings from the 50s and 60s.  I already have two .7 mil carts for later records.  Now I am looking for a really good mono cartridge with a 1.0 mil stylus that would be compatible with my Technics 1200 turntable. 

@billstevenson I will check out the VAS mono.  I already have a AT SP Mono. Great cart for the money but I think they only have them in .7 and 2.5 (for 78s).
@chakster  I really want something I can buy now.

the 1.0 mil mono cartridge you want is the Miyajima Infinity mono 1.0 mil version.

i own both the 1.0 mil, and 0.7 mil versions of the Infinity Mono; each mounted on their own arm. so i can try pressings on each one, side by side.

the 1.0 mil kicks ass on early wide groove mono pressings. superb. low noise. the 0.7 mil is awesome on my 45 rpm mono reissues which i love.

i love both of these cartridges.

http://www.miyajima-lab.com/e-mono.html

Absolute Sound has a 'rave' print review on the Infinity mono in the current issue by Jacob Heilbrunn.

As Mike just suggested, the OP asked specifically about mono cartridges with 1.0 mil styli.  I am guessing he likes to listen to late 1940s/early 1950s mono LPs with wide grooves.  For those discs, spherical is just fine.  Unless you can dig up a vintage Grace mono, Miyajima is one of the few modern companies that produces a product suitable to the wide groove mono pressings.

@mikelavigne Big fan of Miyajima but I am not sure it would be a good match with the arm on my Technics 1200G, even with the KAB fluid damper. (I asked about this awhile back and no one was using a Miyajima on my table.)  I am leaning towards the Phasemation right now.  Would love to hear the Infinity sometime!