I've always heard that cliché that extractor are like light bulbs but I think that these extractor are breaking because of (push feed) which can be caused by three different components that is if the FPS is not holding the extractor tight the extractor can (clock) that is turn slightly clock wise and not allow the rim of the case to slide smoothly behind the hook, second if you magazine spring is weak or you haven't smoothed out the magazine case with lets say some plumbers emery cloth, the slide will return to battery quicker than the magazine spring and cause the hook to miss the case rim creating a (push feed), three a 16# recoil spring is really over sprung compared to the original design which was 14# and cause a (push feed) which forces the hook over the case rim which was never intended to happen, and Fourth the standard stock extractor provided by Taurus is not shaped correctly, a correctly profiled hook should be shaped with a beveled bottom as to create a funnel and that area should be mirror polished to easily scoop up the case rim. by changing out your stock Recoil spring from stock 16# to 14# allows the magazine spring to catch up and prevent (push feed), must 1911 owner think that the recoil spring is to tame the recoil but in fact the compression of the spring is to cock it for it's intended purpose which is to feed a fresh round into the chamber.
An extractor on a well tuned 1911 should last you into the thousands of rounds, the reason I know that the stock extractors from Taurus are not profiled correctly is that I ordered an extra one from them and the bottom of the hook was not beveled correctly but was shaped straight down with out that most important bevel that is shaped like a funnel for easy scoop up of the case rim. I hear from people that say that the extractors made by Taurus are inferior and MIM but theres no evidence that their either if anything they are exceptionally made from good forged spring steel when you think of all the round that are shot through them with incorrect profiles and constantly being pushed forced over the case rim.
OSO, if you call Taurus in Miami and ask to speak with Christian @ ext 238 he will send you a new extractor with in a weeks time he's the go to man there, just remember that you will have to profile the bottom of the hooks correctly, I think if you Google 1911 extractor profile you should find an illustration of what the correct profile should be, you might have to buy some fine jeweler's file from Lowe's to cut the bottom of the hook correctly. Good Luck
Cuban
