Swoops
Legend
Well flash cant go lower than 1.3, so 51 haste is haste cap or ? Because if i stack more than 51 it cant go lower right ?
Using my whole brain to try to understand this xd
Ok, so I'm terrible at explaining this well but I'll try.
Your haste % basically says how much faster you cast things. At 0% haste, you cast at 100% speed. With 10% haste, you cast at 110% speed, etc.
The basic way things are calcuated is:
Actual cast time = base cast time / cast speed
Healing Surge (or Flash of Light) is a base 1.5 second cast.
When you have 51 haste (11.94%), you cast at 111.94% speed. Your Healing Surge cast time will be 1.5/1.1194 = 1.3400 seconds.
When you have 50 haste (11.71%), you cast at 111.71% speed. Your healing Surge cast time will be 1.5/1.1174 = 1.3424 seconds.
Those are your actual Healing Surge cast times, the number you see on the tooltip is just rounded weirdly. The change from 1.4 to 1.3 seconds at 51 haste is basically a coincidence.
If you want to see it a bit more accurately in game, you can use a cast bar addon (I use Quartz because I always have, but there are probably more modern ones).
There's no cap at a 1.3 second cast, I've seen people say that a couple times but I'm not sure where that info came from. The only real haste cap is the GCD cap at 100% haste (the GCD can't go below 0.75 seconds). You can test this pretty easily with drums/bloodlust.