[NOT A BUG] Flanger block dry delay

[DLC86]

I discovered what I think is a bug in the Flanger block, I noticed that there was a difference in sound between using the flanger with mix at 50% and the same settings with mix at 100% in parallel to a shunt.
So I made a couple of measurements in a daw and discovered that the dry signal inside the flanger block is delayed exactly by 0.5ms (thru-zero turned off obviously).
As further proof I tonematched the two scenarios and here's what I get with the same exact settings on both flangers:


This instead is what I get if I add 0.5ms to the delay time on the block with mix at 50%


Below the patch I used to do the tonematch

 

[FractalAudio]

It's not a bug but it's too complicated to explain why.

 

[DLC86]

OK.. but I'm curious now
I'll try to guess: maybe it has something to do with where the feedback path is inserted in the virtul circuit and how it is mixed back with the dry signal, and I suppose also the tiny delay times the processing has to deal with.

Anyway I'll just create two different blocks, one for parallel and one for series use