For me it really is about knowing the fight. Once you do you know the best time to save triple cast for heavy movement or even see an ideal spot to plant yourself for a few moments it gets better. Have yet to do savage as I just don't have that kinda time but for E4, it's almost hypnotic once you know it all and can pop surecast, triple, leylines, and swift at the right times and get the full use. Plus a big smile on my face when I get "uh oh blm" jokes and end up top dps aggro wise anyway.