Time to choose: Baerwald, Lofgren, Stevenson ?

Dear @barbapapa : Overall Löfgren " A "/Baerwald and Löfgren " B " has lower distortion levels than the other alignment you mentioned. That alignment is not something " special ", it's only a manipulation of one of the input values in the alignment calculation formulas: the change was that instead to take either: IEC or DIN  or JIS standards value for the most inner groove input it tooks 54 with no real overall improvement. As you, M.Fremer voted for Löfgren B too through his tests.

As I posted  what any one of us need as a protractor is the MINT LP one, that's a dedicated protractor for the TT/tonearm we own. It's really accurated and for only 100.00-150.00.
 IMHO no one needs more, is really useless stay trying any other protractor other than by curiosity. At the end what we music lovers want is listen MUSIC all the time and not testing 3-5 diferent kind of alignments. Again: useless.

Btw, @lewm posted: """  curve again and make a more definitive opinion. """.

You tested by 3 days and changed to Löfgren with the same LPs. IMHO you need no more. Your ears telling ( in this case ) what the numbers tell it too. 

We can think that a short/brief time can't be enough and sometimes is true but when one person ( as you ) knows what to look for that times goes lower.

I don't need to many time to give my vote to Löfgren and Baerwald over Stevenson alignment: 2-3 hours can be more than enough. Why can I follow wasting more time? when what I want is to enjoy MUSIC. Makes no sense to me: makes sense to you?

Regards and enjoy the music,
R.

Dear @fleib: The manufacturer choosed Baerwald ( I think???? because I 'm not an owner of it. )  and I don't know if he is willing to manufacture it Löfgren B. At the end Baerwald is excellent choice too.

Regards and enjoy the music,
R.

@rauliruegas 

the MINT LP one, that's a dedicated protractor for the TT/tonearm we own. It's really accurated and for only 100.00-150.00.

Or Dr.Feickert analog protractor (next generation) just for £137 new from analogue seduction in UK. The pound is weak and now it's just about $170 including shipping outside Europe. Superb build quality! 

Pryso and other Dennesen aficionados: The UNItractor is kind of a super duper Dennesen.  Dertonearm was obviously a fan of the Dennesen, but what he has done is to deal with its shortcomings by providing (1) interchangeable spindle mounts, so that there is zero play at the spindle, which is a source of error when the hole in the protractor is greater in diameter than the spindle, (2) provide separate templates for each and every tonearm, kind of like Mint does with their arc protractors, (3) provide a formal lighting and magnification system which makes it MUCH easier to be exact, and (4) provide an adjustable mainframe which further specifically adapts the device to the particular tonearm you are using. (A booklet comes with the beautifully boxed device telling you what adjustments to make depending upon tonearm, using a built-in micrometer.)  Yes, it's fussy, but if you want to be fussy, this is the tool.
So, if you like the Dennesen, you would like the UNI and its offspring (like the SMARTractor) even more.