There was a thread a couple of weeks ago suggesting that if you returned your sticky X9 shifter (lever not returning without a bit of help)to SRAM via a Fishers dealer they would replace it with a nice new ball bearing one.
Well.., unfortunately the link and information in it(I think i was on BikeRumour) was wrong. Having sent mine back SRAM have said there is no recall or replacement offer.
So the only option is to buy a new ball bearing one or put up with dodgy shifting.
Just thought I'd let everyone know in case they were planning on returning one.