Nice, apprantly Perfection has been fixed recently where it never fails, as advertised. Unfortunately, without question, SE has nerfed the % it now takes effect. This almost always took effect, but now I've had it fail to take effect as often as 8/10 times, which is extremely lame for a 12K guild marks purchased ability. I'd estimate, at best this takes affect similar to Grandmastery, which has a considerable fail rate. ><