Hope everyone had a Merry Christmas. I noticed this on ebay:

Altec 23744 Diaphragm * Altec Model 19 * - eBay (item 160522819265 end time Dec-30-10 22:41:38 PST)

It's one of the "lite" 23744 diaphragms used in the early Altec 802-8G and 902-8A HF drivers. I'm just wondering what the fascination is all about regarding the 23744's. Has anyone out there measured them/compared them to the 34647 that GPA currently manufactures for these H.F. drivers? Or has anyone at least done a listening test on the same driver--to find out if there's a noticeable difference between the two? It seems to me if there's almost no difference in sound between a 23744 and a 34647 then a new diaphragm would be preferred (and probably sound better?) over a 30 year old one. On the other hand, if the 23744 sounds noticeably better than a 34647 (in an 802-8G or 902-8A driver) then would it be worth hunting down/buying old original diaphragms to have on hand as spares/replacements? Just wondering what the experts out there think/what has been measured or heard as far as differences......