So I've been using a shot macro since like, Karazhan or Wrath sometime, when I realized I was not effectively using Steady Shot in my rotation. The macro has changed a bit over the years, as shots available changed, haste plateaus affected it, and so forth.
So, Steady Shot is gone for me. I don't really miss it - I like having Arcane Shot back, on demand, free and on the move. I do miss the Aimed Shot mobility, but that's just a matter of retraining myself to stand still for it. I've got Aimed Shot, Arcane Shot, Multi-Shot, and Marked Shot for core shots now, with Bursting Shot as an interesting kind of combination of Barrage and the old Scatter Shot. I went with Murder of Crows for my regular set up, which I've been occasionally regretting when I go to farm old raids and forget that I can't just change it on the fly when I remember, after I'm there, that I kind of want it for that. I love the crows, though, and it feels safer in raids and dungeons since my mastery increases my range now and I don't have as good a feel for how far back is safe to Barrage yet.