I feel a bit bad about this, but this page seems to be much more complicated than it needs to be. According to my testing, rules are as follows:
-Each tier provides 15% more additional reach over the previous tier (so the skip from Xanion to Avorion is about a 32% increase) -Additional reach scales with the cube root of volume (so linear with cube side length)
Here's a cute little table:
Additional Reach Trinium Xanion Avorion 2x2x2 3.3 3.8 5 4x4x4 6.7 7.6 10 6x6x6 10 11.4 15 8x8x8 13.3 15.3 20 10x10x1016.7 19.2 25
I tested up to 20x20x20, and the cube-root scaling and relative performance of materials was the same.
Willcf15 (talk) 17:46, 12 July 2020 (UTC)