I want to play around with the Psychic Phase a bit and the Skyrunner looks like a good option, but I'm curious what unit I'd pair it with. The Windrider bikes look like the obvious choice, but outside of their armor save (and weapon options, but I feel that'd make them too expensive) it doesn't really seem like they have anything going for them. Reavers are another option and a unit I'm quite fond of (and fluffwise I like the idea of modeling an Outcast seer on a Reaver bike, with some Rangers as the troop tax as a group of Craftworlders who've fallen in with the Commorrites) but there's the issue of the Reavers' primary defense being jinking, and I don't very much like having the idea of having to snapfire Psychic Shriek (is that how the rules work?).
Beast packs are the other choice that come to mind, but I've never played with them before and have no idea how I'd go about fielding them. Khymerae seem like a fair choice for their numbers and T4, but Clawed Fiends' T5 seems pretty nice too despite their cost. One idea that came to mind is one Razorwing Flock to absorb wounds with its 3W, and two Clawed Fiends to give the unit majority T5.
How do you guys run your allied Farseers? Is Jetbike + Spirit Stone of Anath'lan + Singing Spear a decent build for them? My familiarity with Craftworlds is near-zero. Psychic Shriek is something I'd like to play with (I have two Coven formations and could get Armor of Misery on something for -4LD), and throwing in a Hemlock as a second source of Shriek sounds appealing too. Maybe later (or instead of the Farseer) a Cast of Players for a further -2LD (and a further Shriek source), but that formation does seem like a pretty heavy points investment for not as much Warp Charge.