Want to upgrade my cartridge from 2m blue to black

The cartridge for the red and blue stylus is the same. The cartridge for the orange and black is the same but different and an upgrade to the red/blue cartridge. An orange and black stylus will fit into the blue cartridge but you will not get the best performance from that cartridge.  I had a Music Hall 2.2 and installed the orange and it was great...still have it for my Prime. I suggest you get the orange now it will be a noticeable improvement and then later you can just replace the stylus to the black either for your 2.2 or a new turntable that you will most likely get in the future. 

tubluvr1....I (again) recommend you start with the 2M Orange cartridge and stylus. This is a great upgrade for your MH 2.2. The Orange is a nude fine line stylus and much easier to set up on your tone arm. The Black Shibata requires more nuanced set up, especially azimuth which the 2.2 arm doesn’t allow.  The Orange’s cartridge/engine is the same as the Black. You can always and easilychange to the Black stylus only later when you are ready...probably when you get a more refined turntable. I think the Black is overkill with the 2.2 and the Orange is a great upgrade. I added the Orange on my MH 2.2. When I sold my MH I put the original cartridge/stylus back on and kept my 2M Orange, which I have on a second arm for my VPI Prime. It sounds great on that turntable too, although I mostly use my Lyra Delos MC cartridge. Good luck!