User blog comment:Lukeatlook/Pyro's Item Overhaul 5 - Supports and the CDR Overload/@comment-5266525-20140719194404/@comment-24057740-20140725141553

CDR becomes more effective for each point of CDR you get before.

Let's say you have 10% CDR and your skill has an 10s CD, the 10s will become 9.

If you buy another 10% CDR your skill will go down to 8s CD.

Your question could be, it doesn't become more powerfull.

It is more powerfull because 10% CDR from 9s is not 1s, its 0,9s a difference of 0,1s.

If you would buy another 20% CDR in this example it would decrease the 10s down to 6s.

Another 2s, but 20% reduction of 8s are 1,6s differnce= 0,4s thats a lot...

If you could buy another 10% CDR then it would be way more effectiv as the first 10% you bougth.

6-1 = 5s > effectiv CDR = 16,7% <> With 10% effectiv CDR >6-0,6 = 5,4s