'initiate' flag issue

Hi

Thanks to Yves, I have found Nick's comments on my original proposal for 
removing the initiate flag: 
http://lists.w3.org/Archives/Public/public-ws-chor/2004Oct/0049.html

Nick's argument focused on the declarative flag helping a designer when 
composing choreographies. However, I don't see this as being a 
compelling argument - in fact, it is better from a reuse point of view 
that previously standalone choreographies that initiated a choreography 
session are able to be composed into more comprehensive choreography 
which now starts the session at a different point.

Regards
Gary