RE: Describing which blobs are to be optimized.

> Perhaps the right middle ground is to provide a hook that designates 
> elements that are guaranteed to be in base64 canonical form, and that
are 
> suggested as optimization candidates?

Could that be achieved by defining a subtype of base64Decimal that only
allows canonical representations, and associating that subtype in the
WSDL with the element we care about?

Ugo