A suggestion for MM/MC cartridge manufacturers

Actually I take MC back since they dont have replaceable styli.  This would be valid only for MM.

We know! The only problem is that the adjustments have to be done on a real cartridge. I guess you're talking about practicing set up itself. Thing is, it is a delicate procedure no matter what. No coffee or alcohol!

Scotch:)

No 420 either.  Wait until the sweet music is playing for that. 

Good call on the 420. But, I'm thinking it was something more basic.
More than likely one of these:
1. Stylus guard in place
2. Secure tone arm
3. Disconnect turntable
4. Place on clean well lit kitchen table
5. Rubber band around cartridge
6. Remove pins
7. Remove & box cartridge
8. Rubber band new cart in place
9. Screw snug
10. Leads on clips
11. Q-tip under cart body to prevent stylus/cart contact
12. Overhang, zenith, VTF- in that order
13. Repeat/check previous step
13. Secure arm
14. Replace stylus guard & secure arm
15. Reinstall turntable
Was missed. But which, I wonder?