I'll have to look more into this since past two the scaling is visually non-linear and breaks the current math for locking visible length.
Viewing post in Archipelagates Mod Pack comments
Turns out I didn't need to change anything significant. The mod has been updated again with a max value of 3 for the slider.
Also, there are some visual artifacts due to the negative scaling, but this can't be adjusted without lowering performance (backface culling off/flip normals), so I'll likely leave it as is.