Need Simple, Easy-to-Use "Goof Proof" Audio Headshell Recommendation

what you want, what the entire industry should give us, is threaded inserts in any cartridge body, so two fasteners from the top are all that is needed, so easy to set overhang and null points alignment.

if every headshell had azimuth adjustability, that would be nice

open sides makes it easy to deal with the wires

I prefer removable headshells, and I like how Micro Seiki 505 arms have an adjustable fitting for easy azimuth, another industry standard I wish existed, then no need to adjust the headshell itself.

VTA, easy smooth arm height while playing/listening exists: no tools, loosen locking lever, rotate up/dn, tighten all by hand: examples:

micro seiki

acos lustre gst-801 (I learned about mine here when I joined in 2019)

technics EPA-B500 Adjustable Base also has removable straight and s arm wands

52mm overhang? 52mm must be specific for something else, overhang is the distance from the spindle to the stylus tip centerlines, the longest I have ever set is 15mm, I’ve never seen a protractor beyond that.

square to the headshell, not relevant, when aligned to the two null points, may be slightly off-square in the headshell.

Do you have the alignment gauge that came with the SL1200GR? 

If your cart has threads, just put both screws in and tighten until the cart will not slide easily in the headshell slots. Then using the gauge, line up the stylus tip as per Technics instructions. I wear a cheap pair of magnified glasses when doing this.

When you have it lined up, tighten one side a little more so that the cart can be rotated if need be. I then either measure the gap between the screw head and the end of the headshell slot or use a small screwdriver or other object as a feeler gauge. Rotate the cart if needed so the slot size is the same as the first. Tighten the other screw and recheck with the shim or measure. 

For carts that are not threaded, I just drop one screw in the headshell slot and slightly thread a nut on. Put the cart against the screw and headshell and tighten it up, it will now be easier to get the second screw and nut on. Do the same as above.

I have checked my results with other methods and this has worked every time for me.

your idea, sort of

concealed threaded holes

search, hifishark, headshell adjustable

thanks to you, I know about this one

Thanks for the comments.  I appreciate it!!  I do have all the alignment tools, i.e. Technics overhang gauge, protractor, VTA gauge, micro bubble level, and Fozgometer V2 with test record.  I can get the center/left/right channels fine tuned with the tools available to me.  I did find one product that may/may not work.  It's the Audio Technica AT-LH13/OCC Headshell which is available in Europe but not in the USA.  I reached out to the Danish vendor to see if the overhang adjustment will dial out to what the Technics table requires.  We'll see how that goes.  If not, I will continue using currently available headshells.  

this is similar, photos show it from bottom, LH13 probably similar.

azimuth: rotates on the barrel

overhang: the fitting has two sets of threaded holes, AND the fitting slides forward/back on the barrel

LH18 adjustable headshell

note: you need screws proper thread and length for your cartridge

note: no chance to adjust for null points slightly ’unparallell’ to the headshell.

note: probably shorter wires because the barrel is longer than many

kit includes alternate screws and insert shows 3 models: LH 13, 15, 18