Shure SE210 Noise Isolating Earphones Comments

I have had several pairs (4 to be precise, 3 replaced on warranty) and on every single pair over time the insulating plastic around the copper wire corrodes and splits. I wear them "over the ear" and it seems to be where the plastic comes in contact with the skin and is formed into this permanently curved shape around the ear that the corrosion occurs. They come with a 2 year warranty, so have had them replaced every 6 months or so... but now the 2 years is up, I'm not sure I'll be able to get another pair. There is an obvious design flaw here though - better materials need to be used.

has Shure said anything about rectifieng this problem?
i had the same problem with cheapish (£25) Sony ones.
regards

will you recommend this pair over Ultimate ears 700?

Or the 102s???