I got a new iem measurement rig and conducted some measurements of Andro with various tips. This should convince tip rolling is real.
This is the tip that I considered sounds most right. It's the stock Kanas Pro tips with pretty good bore size
The more interesting part is how the response changes with various tip types such as bore size and material (foam for example).
Stock foam. You see how the foam dampens the treble peaks?
Stock silicone with large bore (comparatively to Kanas pro tips above and Symbio W). You see how the large bore size raises the treble area?