It seems there is no Elitist Jerks website for this game, so let's see what happens here. I am unable to find a definite answer if cast speed is capped in Torchlight 2, and if so, at what +percent is it capped? Also, since cast speed affects only the "windup" animation prior to the actual damage dealing, is the removal of the "windup" frames of animation a straight frame per percentage point or is it a frame is removed in a setup fashion? For example: for every +1% to cast speed 1 frame of windup animation is removed, or more probably, is it for every +10% to cast speed 1 frame of animation is removed. Knowing this would give us a way to plan on a reasonable amount of +cast speed gear without adding useless bonus points to cast speed.