Crit diminishing point per point the more you stack it is something I've wondered if people have ever taken into account. Going from 5% to 10% crit chance is a bigger DPS upgrade than going from 10% to 15%, and so on; 5% to 6% is a ~0.49% DPS increase, 50% to 51% is a 0.4% DPS increase, and 99% to 100% is a ~0.33% DPS increase, ignoring crit procs and whatnot.
SS should be the opposite of for crit scaling wise, getting better the more you stack it, as it's a flat reduction per point as far as I know. 2.5s GCD to 2.4s is a 4% DPS increase and 2.4s to 2.3s is a ~4.17% DPS increase, ignoring auto-attack and whatever else is unaffected and Summoners.
Someone else can figure out if this really affects anything until you get to very high amounts on either stat; my number-fu is not that strong to do it.
