By Kujata.Argettio 2010-02-19 02:26:43
You want to keep aftermath up full time. Even if that means doing back to back Catas.
A suitable buffed Apoc DRK should be ~60-80% haste (dependent on Hasso, the quality of your BRD and whether a DNC is present) and obviously can hit 80% every time they hit last resort with a BRD and RDM.
@ 60% you will do 5 TP swings in 17 seconds
@ 70% you will do 5 TP swings in 12 seconds
@ 80% you will do 5 TP swings in 8 seconds
(~76% haste is the requirement to reach 100TP in less that 10seconds)
Now you want to keep up the aftermath up full time so, any time you have less that 76% haste you will have to use Cata every time, but if you can get over 76% haste then you Can do Cata -> Guillotine -> Cata etc while maintaining aftermath all the time.
DA would reduce the amount of haste needed to 'fit' and Guillotine between Catas, around 70% should be enough to alternate WS. That's a rough estimate.
(There will be rounding errors in the haste maths, as I rounded to the nearest second)