Questions

I can see how useless it is ever since it was neglected.

Anyway, I'm confused on the maximum teleport duration deduction part. Is that referring to per teleport or overall? Also does anyone (*cough* JP *cough*) even know the formula of teleport to duration deduction?

Overall. No formula due to a lack of surefire way to test distance.

How the hell was the Lance Charge damage formula came up if there wasn't a way to test distance then?!?

Variables probably found through either extensive testing with a known distance between point A to point B or remnants from data found with files.

This discussion is about FS, not other skills.

I'm well aware of that.

By estimation, how much duration would a single teleport consume?

Why your question can't be answered: 1. lack of an accurate timer 2. issue of displacement lag 3. duration varies with rank 4. reduction varies by distance

Actually, it wouldn't be that difficult to figure out.