just as a fast thought i would still stick slow/fast for the poison procs on the off hand. you'll need those for envenom, but that's just my take.
I am thinking of using double IP on weapons when i solo quest and eviscerating (glyphed) instead of using IP/ DP cause i think mobs will not live long enough for deadly poison to reach 5 stacks and start procing.Do you think will it be viable choice or it is betetr to stick to envenom?
With deadly momentum you should be able to get the envenom buff up within one energy pool dump, but even in that case it might have been better to use IPx2. However, the consensus seems to be that things no longer get 2shotted from 80-85. Presumably that means that deadly is still worth using, and in either case it's not going to make a huge difference if your poison setup is slightly lower than ideal.