For the record... Grace Disco stylus has nothing to do with DJs. It was marketed to audiophiles. It is a high quality nude diamond. I assume the name comes from the fact that it is spherical. The F9D, which I own, has a recommended tracking force of 1.2 g, the same as other Grace F9 models (F9P has a significantly higher VTF because it was meant to be used in heavy professional arms, i.e. radio stations). the F9D is a very good sounding cartridge.
MP150 or MP200
I am currently using a Nagaoka MP110 cartridge and want to upgrade . I really like the Nagaoka sound and was considering staying with the Nagaoka sound . My question is will I get a considerable upgrade in sound going to the next level cartridge which would be the MP150 which would be a 329.00 investment or in order to get that big upgrade I would have to go to the MP200 which would put me almost at the 500.00 mark .