Call them, see how much confidence they have in their product?
or just go visit a GSSF match... where they always have a Glock armorer who will check over your gun, replace any springs and do any work for nothing... with a smile and a cool story or 3.
You might even meet Scotty Banks... who's one cool cat.
I always assumed that Glock had a better warranty because they make a fine product and Glock is a reputable company. Its heart warming to hear people on the internet say how great Glock is on warranty work. But the fact is, open the paper work that comes with your new pistol and in black and white you have a 1 year limited warranty. This fact is not going stop me from buying Glock but it hardly enhances my view of the company.