My disenchantment with the religion of very precise alignment took place quite by accident. I had my Ortofon MC2000 in a headshell that had been aligned for the tonearm on my Kenwood L07D turntable. The MC2000 did not work well in that system due to inadequate phono gain. (If you don't know already, the MC2000 is infamous for its tiny voltage output, 0.05mV at the standard velocity.) I had reluctantly decided to sell it, but I thought I ought to give it a try in my other system, just to prove to myself that the MC2000 was not in fact defective in any way, and out of curiosity as well. So I popped the headshell/cartridge onto a Dynavector DV505 tonearm in my other system, without any effort to re-align, and to my surprise, the MC2000 sounds stellar in that context. I subsequently did do an alignment on the Dynavector (using a Feickert protractor), and I heard zero major difference, let alone any improvement, as a result of my effort. And so on, to an FR64S tonearm without further re-alignment, in this same system. This is a scientifically worthless anecdote, in a sense, but there it is. I probably deserve criticism for even putting this story on line, but I cannot ignore what my ears tell me.