There are already solutions to carrier tilt (despite the fact that some systems are more prone to this problem than others):
Get one of the Slash or FRS anti-tilt buffers, coupled with the PWS anti-tilt buffer tube if you want to go overboard about it. No carrier bounce. No carrier tilt. No buffer wear or scraping of the upper receiver.
Even if you experience carrier tilt / scrapings, the problem seems to only go to a certain point and then it won't wear anymore. Just get the anti-tilt buffers already!