1) The Ranger feats rapidshot, precise shot, improved precise shot do work. Manyshot is bow only. None of the Ranger PrEs work with thrown weapons.
![Frown](/forums/images/smilies/frown.png)
While Tempest and Arcane Archer do not lend themselves to Thrown weapons, I though Deepwood Sniper would have been a perfect enhancement for thrower builds.
2) Returning throwers used to not have ml: requirements. They were fixed/converted in a patch, but a very few survived with no ml:.
3) There is a separate line of feats for WF:Thrown, WS:Thrown, GrWF:Thrown, GrWS:Thrown, and ImpCrit:Thrown.
4) TWF feats do not apply (can't throw 2 weapons at a time). However, certain weapon enhancements do apply if used in offhand with thrower in mainhand. Seeker in the offhand will provide bonus to the mainhand thrown weapon.