Phoenix.Kirana said:
If you're not using unlimited shot, might as well put the merits in Camouflage recast for the enmity reduction.
This is what I did when Double Shot was added. Reducing enmity should usually be your main concern on RNG and Camouflage is pretty damn powerful when used right.
As for atmas, Sea Daughter is always awesome. For conservative rangering (Slugwinder) I'd probably use SD/Stout Arm/GH. Switch SA to VV if you want or need more regain.
For when you finish that Gandiva just switch GH to RR and you're set.
For group2 merits I like having 1/5 Flashy Shot, 4/5 Stealth Shot and of course 5/5 Snapshot.