bcuz this titanseals calc version (d2 . lc) has some bugs:

ignore
- primary weapon button
- ias chart
- weapon-ias chart
- result

select only
character
weapons
skill
skill ias (like fana aura, frenzy, BoS and etc)
skill ias debuff (holly freezy aura or decrep curse) <- used more for pvp or uber duriel hf aura lv6

the ignore list will give you less headache figuring out what works,
for example: doesn't matter at all if you put ias: 10% or 100% when using ias table
ias table = precise result
result = in most cases the max possible result (so not reliable)

there is other bugs such:
- when using two claws or two weapons with different wsms in the case of barbarian,
putting fastest claw first and the slowest claw in the second slot this will trigger the
result of wsm bugged ias, (this will confuse a lot ppl who only pvm, bcuz is often used
in pvp)

- the reset page feature/bug, idk, whenever you hit the ias table button the page will be reseted
to the standard option of paladin and no weapons, so can be annoying when you want test some
options and need config every time..

- if you hit the ias table button and had the small window of previous result, the main page will be
reseted and the small window won't give you the right result bcuz already has the previous one,
you need close the small window first then hit the ias table button in order to get finally the result

^ this things annoyed me too, so i leanerd some really basic programming skills and made my version
of the same calc (the d2 . lc is already a hacked version from the ancient titanseal's calc) fixing all the
problems above

sharing in case you find useful: https://thorobr.github.io/D2R-Calc/

edit:
forgot to showing the dual weapon bug in this calc:
my version: showing the real result without wsm bug vs the calc automatic give you the result of wsm bugged ias and the worst case of the bug is the last one when you put the slowest claw first things goes crazy..
vs vs

This post was edited by ThoroBR on Jan 14 2022 12:25pm

Sorry for late reply! Thank you very much for this post. Will donate 5FG (I know not much, but as a token of good manners)!