A while, Pinski laid out the Synergism vs. Pet numbers quite well in this thread:
http://www.eq2flames.com/illusionist...e-group-2.html
I wanted to get a current view of things with haste factored in:
1) Given a Mythical Epic geared Illusionist, does it now make more sense to put him in the scout group, haste the group, run the pet with TC and Tandem, and Tandem self + 2 mages out of group? (This has the sub-assumption that a scout group with our haste buff and IA is better off than our personal benefit from wiz and troub buffs)
2) For those of us who have a non-mythical epic collecting dust in our bags, is the overall raid dps still better off if we are in the mage group with wiz and troub procs running a pet(in most situations) with TC and tandem on pet and self tandem rather than scout group? (My parse numbers from SoH last night would tend to lead in this direction).
3) Get a second Illus. and do both 1 and 2.