Sure. I originally did the medium tips (Symbio medium to AirPods Pro medium) but I just did the large as well, and took some pictures (click to enlarge). The whole process took about two minutes. The original/unmodified tips are on the left, in all the pictures (for comparison's sake).
1. Begin by inverting both tips. The Symbio memory foam seems to be sticky, but it actually isn't sticky - just tacky. So the tip inverts pretty easily, exposing the memory foam core.
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2. Slide the memory foam off the shaft. (yeah, yeah - I'm sure there's a joke there)
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3. As you can see, the memory foam insert comes off easily.
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4. Pinch the AirPods Pro tip, and squish/twist it through the center of the memory foam.
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5. Pull the AirPods Pro tip through the memory foam's center, and position the memory foam on the shaft.
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6. Re-invert the AirPods Pro tip and you're done.
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7.As you can see, the case closes perfectly.
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The memory foam is quite pliable, so it fits the AirPods Pro tips' center shaft perfectly.
Hope that helps!