Mage Haste Rating

[petaar]

One of GM's told me to post some proof here for this haste problem. How is it possible to have the same casting time for my Frostbolt with 187 and 242 haste rating. Here are some pictures that i uploaded. (http://postimg.org/image/dwp8wv0bj) (http://postimg.org/image/ju2kwahwj/)

[Bucovsky]

I recommend using Imgur to upload your photos.

EDIT.

It appears to be the same for me:





However, according to the spell tooltip there is a difference: 2.14 vs 2.07

Addon shows it as 2.1 in both cases because in the first case 4 is lower than 5 so it shows it just as 2.1 and in the second case 7 is higher than 5 so the number is closer to 2.1 than 2.0

[Exsurgo]

I do believe this is due to Quartz not being super accurate while reporting cast times (it does a bit of rounding).

I tested with your two haste values using pyroblast and the difference according to quartz was 5.0 vs 5.1.

Note I did test multiple spells with a stopwatch and the values seem to match the tooltips :)
Feel free to test/confirm, a few extra sets of eyes never goes amiss.

[petaar]

Yes i know what you want to say, but with 242 haste rating am i not suppose to cast frostbolt something between 1,7 to 1,9 seconds? Because it isnt logic to cast the same time with 100 and 200 haste rating. Then it wouldn't be haste rating in the game included. Im totally mind-fucked.

[Exsurgo]

With ~ 243 haste rating, and 5 points in improved frostbolt, your frostbolt cast should be ~2.16 seconds. Pretty sure the issue here is the Quartz casting bar you are using is not that precise with it's readings.

[petaar]

Please explain it more simple i didn't understand a word you said to be honest.

[Exsurgo]

I can talk you through the formulas if it helps.

Assuming Improved Frostbolt, which has a base 2.5s cast time.

First to get your spell haste percentage plug values into formula 1:

Spell Haste % = (Total Spell Haste Rating / 15.7) / 100

which in our case gives us:

(243/15.7)/100 = 0.1547

which is roughly 15% spell haste as reported in game by the tooltips.


To get the final time of a improved frostbolt, we plug the above value into formula number 2:

New cast time = Current cast time / (1 + spell haste %)

with out values, this gives us:

2.5 / (1 + 0.1547) = 2.165s, the final cast time of our frostbolt.

That is the maths covered, and it is what the in-game tooltips display.

Quartz seems to round the numbers quite a lot.

It looks like it is rounding a 242 spell haste frostbolt to 2.1 seconds, and also a 330 spell haste frostbolt to 2.1 (which is really 2.06 seconds in-game).

Quartz seems rounding 2.165 and also 2.06 seconds to 2.1.


With issues like this, it's always best to pick the longest cast time spell possible. The reason for this is it amplifies the differences that the game reads out to us, hence why quartz gives us two different readings with 242 haste vs 331 but with frostbolt it does not.

[petaar]

Yes, with mathematics you are right. Now I get it. Maybe the whole problem was that i didn't calculated like this and it was a rough calculate by myself that if with 188 haste is 2,2 sec and with 242 it would be something like 1,8 and 1,9 sec. Thank you anyway for your time. Have a nice day.

[Exsurgo]

Np. Have a good evening :)