As I stated to Nancy, I very much doubt your claim:
> The elimination of "this stuff" (a good label for
> it) makes Pound nearly
> co-author of the poem.
Since Pound did not himself eliminate anything from
TWL, this is quite exaggerated. He acted as editor,
giving Eliot suggestions and advice; Eliot himself
decided what to expunge, retain or alter. Many poems
have been edited in this fashion (here we have the MS
evidence, of course), but such criticism--when the
author himself makes final decisions-- is not normally
considered an authorial contribution.
Regarding your other remark,
> Has any critic ever speculated why Eliot chose "such
> stuff" for his first
> effort at producing heroic couplets?
TWL is not Eliot's first or only attempt at couplets.
'The Love Song of J. Alfred Prufrock' has quite a few
heroic--or rather, unheroic--couplets.