Calling all VDH Colibri Fanatics and Experts ...

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