Hey,
Adding a %-Slider to only show interrupts at a certain % of the current cast would be golden!
Greetz

This isn't a bad idea, at all. I'm curious as to what prompted it. By default, the addon tries to interrupt in the last GCD of a cast or the first GCD of a channel. Is that not sufficient?

well, im usually quite focussed on my hekili square, and the interrupt often shows up too late for me to react to it. With other words, it shows up, and by the time i have reacted to it, the cast is over, but i still pressed my interrupt and so it goes on cd without having anything interrupted. If i could back down the slider a bit, at lets say 80% of the cast, i would have more time to react.

Also, when ur playing fury warrior with some gear, sometimes ur hastelevels go out of the roof, wich reduce GCD by a ton. At this point it gets even trickier

Have you tried having the addon show interrupts separately? See Toggles.

i havent no, ill look into it. its so annoying tho to get this properly tested! blizzard should have a 24/7 casting dummy somewhere.

still a slider wouldnt be a bad idea

It could be latency issues or my own human reaction time but ever since interrupts are being shown at the last gcd of a cast I miss every single one of them. I like the idea of not showing interrupts from the start of any cast, as Hekili used to do, but now I miss most interrupts.