Altec 604 E reconing options.

[charly1944]

Hello,
Yesterday night i woke up at 4.15 in the morning (Paris time) for something exciting: I finally won the auction for a pair of 604 D .The speakers will be soon on their way to GPA to be restored . From what i read here from Cradeldorf as well as (indirectly ) from Ken Shindo the original paper cones together with paper surround used in the C and early D models sound smoother than the late D and E models with the accordeon type model . If i am lucky,GPA will have a pair of those left.If not i will go anyway with their new cone with accordeon surround.
I noticed that about 5 mm of front of the mouth of the hi freq horns were filed down.I dont know for what reason that was done and wether it has an impact on the sound . Anybody aware of this kind of practices?
If you were in my situation (listening to classical music and jazz in a rather small room and more interested in the subtelty of the music than in deep bass or high power handling)what would you ask Bill to concentrate on for optimal restoration ? GM,Jeff,does it help to ask GPA to measure the specs of the restored speakers for optimal cabinets building and crossover design.