POST Body Delay even with 100 Continue

I saw the question by Michel Mastriani <[email protected]> 
regarding POST DELAY in early May and the response by Girish S 
<[email protected]> suggesting the use of:
HTTP_setBodyWriteDelay(ms_t first_try, ms_t, second_try);

I am experiencing the same problem (HTTP/1.1), and while this might be a 
good workaround, shouldn't libwww continue with the sending of the 
entity body as soon as it receives 100 Continue from the server, without 
having to wait at all?  If the Expect: 100-continue header is sent by 
the client, and the server obliges by send 100 Continue, what more is 
there to wait for?

Dan Evans
Invores Systems