hi all, i'm following up on an earlier question about replacing the brake lever. if you'll see in the picture attached, this little plastic tab on my shimano's is broken, or at least not fitting into place. while this seems trivial, its a) annoying as hell and b) squeezing my hands when i push hard on the brake. any idea on how to replace this specific little part or how to get the great plastic back under the rubber hoods??