vinylshadow
"Removeable headshells add resonance and are a weak link in a tonearm. Convenient but lower performance."
It's a weak theory that limits optional use of cartridges for so many. Limitations of features of tonearms on sooo many TTs today is one of my pet peeves.
Why then did the SME 3009 and 3012 reach such prominent success and they continue to maintain desirability?
All the Technics highly regarded 1200's have removable headshells.
Ease of precise height adjustment ought to be a main concern when choosing a tonearm. Rotation of arm/headshell is another consideration regarding ease of azimuth adjustment.
Micro-Seiki 505s were/are wonderful arms. The fitting on the end of the arm that fastens the cartridge can be adjusted for azimuth, a terrific feature.
Or a headshell with built in azimuth adjustment feature:
pricey
bargain
Pre-mounting a cartridge on a loose headshell is far easier than mounting to a fixed arm.
Continue to play MONO lps with stereo cartridges due to limitation of fixed arm? Avoid terrific MONO LP's from the era when so many greats made their reputations?
Stick with a single cartridge choice, that's a damn shame.
I could go on, I've used fixed or removable on and off since 1966, removable/arm features is the way to go!
Other than that, I have no opinion on the matter.