BaerWald vs VPI setup protractors

I would never trust a printed on paper protractor on a high-end turntable. I’m an architect, and deal with skilled accurate drawings every day.  Even with good quality printers on good heavy gauge bond paper things can be ever so slightly off. First paper shrinks and expands based on humility. Second printers don’t necessarily print perfectly, depends on how they print and to how acutely the paper mechanism rolls the paper as print, thirdly and most importantly the hole needs to be man made and when fractions of a mm count that’s too much risk. Don’t get me wrong if all you want is a generally OK alignment then maybe paper is OK but I would never trust that on the high-end turntable. Factions of a mm matter. 

@lewm My opinion is that Baerwald is a fraud. Lofgren A is the correct alignment, so why do people insist on calling it Baerwald? 

Thanks all, I appreciate everyone's input and gather from it that there are many ways to obtain desired results. There seem to be equal numbers of respondents in all camps. No one is wrong using their preferred protractor although I'm  intrigued with the mirror protractor.  May have to try that. I'm perfectly content with my set up and it sounds fabulous. Unfortunately no one answered my question. 

@last_lemming I agree with you completely.

Dear @gillatgh:  """  about half a millimeter. Can this small amount of variance have a sonic impact? """

none.  Think on this: the difference between Löfgren A(Baerwald as you said. ) and Löfgren B is around that half mm in the overhang value with the same offset angle.

Differences in tracking error between both kind of alignments are at minimum both Löfgren alignments shows traking error distortions and the real true difference is where those distortions happens, this is before, after in between alignment null points. What changes is where its happening on each Löfgren alignment type.

Now, overall and does not matters if Löfgren A or B Or VPI the distortion level is changing at each single groove through the LP surface and this means that no one can detect a true difference ( with sonic impact as you said. ) due that changes at each single groove are so so to small. You can measure but can't detect tghose so small changes no matter what.

So, stay with VPI alignment . If VPI and Löfgren/Baerwald alignments were made it in accurate way then no sonic impact detectable for you.

Regards,
R.