Andy, I've run across only one verifiable report of a shooting with the PDX .38. It worked well in that incident. However, one shooting does not a track record make, and as you've noted, the Gold Dot 135 grain +P short barrel load DOES have a splendid track record in snub-nose .38s.
If you can't find it locally, call ProArms at 386 364 GUNS. I know for a fact they have that particular Gold Dot load in stock, and also have a UPS station next door for immediate shipping. I hang with the ProArms folks and shoot with their pistol team, and can vouch that they'll take good care of you.