I saw 8.6% only on 2 theorycrafter posts and both were rejected by community.
Currently all other sources use:
The most popular MAGEY’S FORMULA + 1% Ignorance
Target Defense - Attacker Weapon Skill <= 10
Hit Cap = 5% + (Target Defense - Attacker Weapon Skill) * 0.1%
Target Defense - Attacker Weapon Skill > 10
Hit Cap = 5% + (Target Defense - Attacker Weapon Skill) * 0.2% + 1%
It give us 6% for 305 WS and 9% for 300 WS, what looks good, but 1 WS is worth only 0.2% hit for D - WS > 10, instead of 0.4% hit
and less popular MAGEY’S FORMULA + 1% Ignorance + 0.4% WS
Target Defense - Attacker Weapon Skill <= 10
Hit Cap = 5% + (Target Defense - Attacker Weapon Skill) * 0.1%
Target Defense - Attacker Weapon Skill > 10
Hit Cap = 5% + (Target Defense - Attacker Weapon Skill - 10 ) * 0.4% + 1%
It’s for that ones, who believes, that 1 WS is worth 0.4% hit on 300 WS
You good pointed, that 1% +/- doesn’t make huge difference and in some reasons lack of hit can give us profits, but for better players 1% is everything and they want to know everything!
Currently you can aim for casual players, “who don’t know mechanics”, because no one from “enlightened” players believes in 8.6% hit cap. (i asked them on warrior, rogue and paladin discords). It will be also their main point to avoid your simulator, because “they know the truth and you don’t” and “you falsify the results”. Don’t worry, because i asked them only about their point of view about 6.6% / 8.6% hit cap and i didn’t link this with your site or your formula.
PS. I never saw such toxic answers on discords, when i asked about it. They act like religious fanatics from Hit Cap Cult xD