Not really: it was
added in Update 45, along with +10% Alacrity to Improved Archer's Focus and +10% Alacrity to Shot on the Run for bows. Those attack speed bonuses were later nerfed around the time Horizon Walker came out (U50), returning SotR to its original irrelevance.
But it's why
Carpone's U49 bow build was a pure ranger with tier-5 DWS + captone IIRC; while almost all of the archer builds since then have been Horizon Walkers with heavy rogue investment.
If it were up to me, I would switch back to barbarian and dump the Dodge/Mobility/SotR/Spring Attack feats, which don't add much to this build IMO - certainly not enough to justify the 4-feat tax you're paying and losing +10% runspeed.
Leveling order: rogue 1 / ranger 1-8 / barbarian 1 / ranger 9-12 / rogue 2-7
Feats: Point Blank Shot (1), Precision (3), Least Dragonmark (6), Empower Heal (9), Improved Critical->Ranged (12), <filler> (15), Nimble Fingers (18), Combat Archery (21), <filler> (22), Overwhelming Critical (24), Doubleshot (25), <filler> (27), Law or Chaos (28), <filler> (30), Legendary Aim (31), Scion of the Ethereal Plane (32)
Rangers don't get Cure Light Wounds until ranger 8, hence why I delay the barb splash so I can take Empower Heal at level 9. Alternatively you can level rog 1 / rgr 1-6 / barb 1 / rgr 7-12 / rog 2-7 and just swap the order on Empower Heal and Improved Critical.
Enhancements:
- 40 Deepwood Stalker (all cores & tier-5s)
- 16 halfling for Dragonmark line and max Guile
- 13 Acrobat for Fast Movement, Haste Boost, and Shadow Dodge (+3 DEX)
- 11 Assassin (3 cores, Venomed Blades, SA) OR Arcane Archer (3 cores, Conjure Arrows, imbues)
That's probably about as good as a strictly F2P version of Carpone's build (+Dragonmark) is going to get. I believe it takes Nimble Fingers for the Shadowdancer enhancement (+1d6 sneak attack), but the skills bonus is a free perk.
Sneak attacks: 4d6 rogue levels + 3d6 Deepwood Stalker + 3d6 racial Guile + 2d6 Assassin + 4d6 Shadowdancer + 6d6 Ethereal Plane = 22d6 sneak attacks. Not bad for a majority-ranger archer build.