I know this may be a bit more of a mechanics question. But I would like to get the opinion of some more experienced mechanics. The issue is I volunteer sometimes at the local bike and have to deal with a lot of cheap gripshifters which seem to be a serious pita to deal with. Is it just me are where these things never designed to be taken apart and re-cabled? When people are told that the cheaper gripshifters can't be re-cabled repaired a lot of the they just don't believe it. They almost always baulk don't like the idea of thumbs shifters but when your dealing with mostly used recycled donated parts there isn't much else.