I had it extracted in the end. From what I read about cracked molars, I just felt that even if I had the root canal and crown, I'd always be waiting for it to fail.

Thanks for the reassurance about it not being noticeable. I also spoke to a friend who has had all her back molars removed and I didn't even know, so maybe it's more of a problem with front teeth than back ones. She has no issues at all with eating either.

Good Luck with your tooth, whatever you decide to do. I know it's a hard decision to make.