I was recently working on making a farming build, and kind of failing. 3 times. but on the third build, I noticed my Twisters were a lot closer together than usual. after a little investigating, I discovered that my Dexterity is 40 (+20% CD reduction) and a cool down on my pet. so I added a few more to get 60%, and wow! I also put 40 skill in Twister and now I have Twisters flying out of my staff so close together, it looks like Twister soldiers marching off to war.
cool down saved my farming build.
I don't know if it is possible, but in the near future, I am going to try and merge my Fast! Faster! Fastest! build with my Cool! Cooler! Coolest! build. it can only be a dungeon crawling build, but it sure would look cool.