Not so fast Raul.
Okay, here's the deal; I saw a PDF written by Dietrich Brakemeyer in 2015. It kind of explains the design criteria of uni din. It gives a brief history of alignments (I won't bore you with the details) and talks about his alternate alignment as an option.
As a preface to the PDF he says the published nulls (Analog Planet) are wrong. I want to make this clear. I have not been in touch with Acoustical Systems or Brakemeier directly, or Fremer, and I have no vested interest in any of this.
I saw this late at night and at first I thought perhaps the nulls change with eff length. After a second reading I'm not sure, but probably not. Check this out- to paraphrase:
**
Uni-Din does not follow the standard calculations for tangential curves as we know them. It also features very unusual resulting offset angle and overhang for the effective length. Uni-Din was first designed, then calculated.
You may be tempted to recalculate Uni-Din based on the known second null point with the calculation tools offered in VE or similar websites.
However, this inevitably leads to the first null point being more than 20mm away from reality, and thus leads to a curve that is anything but Uni Din.**
I'll be honest. I don't know what the hell he's talking about because there's not enough info. I don't have an AS alignment device to debunk this. AFAIK this is like a Dennesen or Feikert protractor which gives you the inner null? One of these protractors automatically gives the outer null. If one null can not be calculated from the other, it can be measured.
This requires a novel device called a ruler, or you could go to VE and download a Chpratz protractor which is just a calibrated straight line.
Uni-Din owners - measure your nulls.