Starker says that he prefers a more narrow vibrato over a wider vibrato. I chose to write about this because I know that vibrato is a big issue to all cellists. Starker says that a wider vibrato because it sounds out of tune, and the adjacent notes can be heard at times. I agree that being able to hear adjacent notes is not really a desirable thing, but I don't think that it always has to be thin and narrow. I think that it depends on the mood of the piece, and should be chosen based on the emotions that are felt by the player.
Nothing is written in stone when it comes to music.
I like Starker's thoughts on interpretation. I always laugh at people who obsessively back up their interpretation of a work by citing an authority. Usually, you can find information to back up any interpretation, so you have to wonder which the person came up with first- the citation, or the interpretation. Performance practice, too, gets to be very much a game. I agree with Starker on being true to the structural elements of the music, and I think interpretation is a very personal thing.