Hey just found another pic that's clearer. On the in vs. out, the shackle plate flange has ears on both sides so you can position them either way. I have seen them pointed in on one TT but the majority I have seen are pointed out like mine. Honestly it may not matter that much, because all the shock does is dampen the oscillation of the spring to control bounce, it doesn't provide any suspension itself. It would seem to me that optimum damping would occur if the shock is perpendicular to the movement of the spring.
On most vehicles the shocks are close to vertical to match the deflection in the spring. Here, the shocks are angled due to limited vertical height. Whether you face them toward or away from each other they are still at the same angle relative to spring travel, so less than optimal. Facing toward each other creates a lot going on in that spot above the equalizer, plus you may have fit issues depending on shock length and axle spacing. Facing away from each other gives you a lot more mounting flexibility so probably why that's the recommended method. So I would say either way is equally effective but one offers an easier installation.
