The STI I run is as close to 100% as is possible for anything mechanical. There is a reason most of the top IPSC and 3 Gun competitors run STI, SVI, or some form of a 1911. You will see the rare Glock in the top 20, it's usually the same guy that is dedicated to the Glock (sponsored). As you can tell by my post I'm talking comps. It is a good cheap entry level pistol for those wanting to compete, most move on if they get serious.
The reload statement was a reply to the poster that he'd never heard you shouldn't shoot reloads in a Glock, owners manual backs up my statement.
Again, the manual states so because the company's legal divisions want them to cover their asses. Look up virtually all manufacturer's manuals and they will say the same thing as it limits their liability if some dumbass blows their weapon up from shitty reloads. It has nothing to do with the firearm not being able to shoot them.
And yes, for competitions a lot of guys run the 1911 platform for a large number of reasons. Most of the top performing guys are running them due to the high degree of customization that is possible to match the gun to the shooter's preferences. If you want to claim that your STI is as close to 100% as possible mechanically and are suggesting in any way that it is superior to the Glock, then I cannot honestly take anything you say as being serious. All guns are going to have malfunctions if you shoot them enough, but the 1911 design does not lend itself well to long term reliability compared to the likes of the Glock and other modern day service pistols. Guys who cling to the notion that the 1911 is the holy grail of pistols are make me laugh.
But hey, all of this is just the rantings of a guy who still prefers shooting the 1911 over the Glock. But at the end of the day, I carry a Glock for work because I know which one will be more likely to work when shit actually counts.