I haven't heard this light thing though Zanash has offerd to show me in a few weeks time - but I put my hands up to starting the lathe controversey (at least I may be partially to blame). In this instance (with the lathe) the differences weren't tiny. BUT. . .  isn't it the cumulative progression of improvements which makes the experience of listening so satisfying when you realise that things simply sound - dare i use the word 'nicer' - or more 'musical' or more 'satisying'? I know many who thnk supertweeters are a super con - tomy mind they have sigificantly improved several systems Ihave heard and a latest prototype pair I have been listening too have a subtlety (maybe read small) impact on sound which makes for a very pleasurable listening experience. Sometimes - subtlety wins every time dontcha agree and n Hi Fi when you are looking at improvements at the higher end isn't this the area where the return diminishes yet the sum of the parts is greater. I hope that makes sense ?