Of my three bikes with index shifting I have now completed converting two of them to friction shift, using bar-ends.

Much better than they way they were.

The tird I will probably leave as an index shifter simply because I don't find the campy hoods too uncomfortable and there is "some" ability to trim the front der.

The shimano ones had to be converted - driven by the front der. issues. But all in all - much better now that they are simply friction shifters.