The DAO triggers are usually pretty slick as they leave the factory. The only one I've encountered with poor triggers were police trade-ins or ones that have been messed with.

You can usually replace the hammer spring with one that is 1 or 2 lbs lighter, without affecting reliability. The PC used to do action jobs on the early models with forged parts, though I don't think the current staff is doing so. Recent models with MIM parts will slick up on their own with use.