When I talked to them they said that the competition springs are now standard on all models.
OLG, I did have a 1911 hammer spring that I wasn't using. I got it cut down quite a bit but it works. It's still a bit stiff but it's better than what came on it. I'm planning on shooting it and maybe cutting another loop or two today. I'm making sure that the cut end pushes on the larger part of the guide rod.
I nearly messed up big time. I was installing the new spring when it slipped and the smaller end of the guide rod shot off to parts unknown. I found it the hard way, I stepped on it. Luckily the nerves in that foot are dead so it didn't hurt. I just heard it scraping on the floor.