PIE roots supposedly having *a as main vowel

Hi,

I have finished analysis of Piotr's examples of *a roots.

the .doc that reflects my point of view is in the files.

as :
Piotr_s_Examples of roots containing _a_13_02_08.doc

I consider that (about) none withstands a careful analysis.
Two or three are based on obscure data, so that it's hard to assert
anything.
In many cases, *a is unstressed allophone of *e.

I hope there will be (plenty of) reactions.

Arnaud.