Calling all VDH Colibri Fanatics and Experts ...

You can try to measure AS so

https://www.dropbox.com/s/3i8rnq3p55zd5q0/AS%20Messung%20mit%20Faden.jpg?dl=

https://www.dropbox.com/s/blqmbi9o3ix5n72/AS%20Messung%20mit%20Waage.jpg?dl=0

I like the 2nd picture idea. We shall see how it goes. 

It is not the accuratest one, but better than nothing.

I was trying to set it by ear listening to some mono records and looking through magnifying at how the cantilever reacts (left, right, nothing) when the stylus touches spinning vinyl. Also watching how the tonearm behaves in the wider inner groove (is it slow/fast). But this is approximation I think. 

ninetynine.
I just checked again our picture with SRA measured. Are you sure the result >93 is the correct one? BTW this is really nice quality of the pictures you took of the stylus. May I ask what microscope you are using. I am using DinoLite AM3111 but cannot get such closeups like you did.

Hi, i have a Dinolite 4815ZT.
Yes, the SRA is about 93degrees, but the cartridge has only about 100 hours and the SRA will get down a little bit

ninetynine,
with regards to SRA settings you mentioned earlier that you started from the level settings and ended up at 93 degrees. Was the final setting achieved by hit/miss listening or some other way? Also with your current SRA of 93 degrees where are you with regards to the level position? I am 5mm above the level with mine currently. It sounds really good but a little bit edgy and I wonder if the current level isn't too high. 

I aligned the tonearm horizontal by eye and measured about 93 degrees. A.J. looked at the picture and said this is absolut correct.

So you are having the tonearm level at the moment and this gives you current 93.17d?

Yes, about 92-93 degrees. But i do not make a thesis of this.

Of course. Your Frog may have different cantilever position and it is all individual per cartridge settings. But this is interesting.