AS - Arcane Shot
CS - Chimera Shot
KC - Kill Command
SS - Steady Shot
With T11-4 set bonus i had CS glyph and used CS-ASx3-SSx4 rotation which had exactly 9 seconds duration and sometimes used one SS instead of AS to balance focus. With T12 i have 12.93% haste and 1.4 sec SS cast time with raid buffs. I removed CS glyph and use the same rotation CS-ASx3-SSx4 which is now has 9.6 seconds duration meaning that there is 0.4 second gap that i have to wait before CS goes off cooldown and only when i have to use fifth SS instead of AS, to balance focus, it fits perfectly, which happens even less frequently because of free KC every second rotation. The guide mentioned above doesn't give an option, but maybe i missed something. Is there any rotation that fits better and doesn't have that annoying 0.4 second gap?
P.S. It is not possible to reduce haste by much and use 378 level gear.