Is it possible to run two choplists on the one dist file?

We run a very very very big mailing list (a newsletter) under 
SmartList and after 30 hours it is still the delivering mail.  Now we 
have had to have choplist produce it in bite sized pieces (down to 
25) as too many ISPs simply refuse it when trying to deliver to more 
than that. <sigh>

I was wondering whether there was a way to have two choplist 
processes running on the same dist list, or to split the dist list 
and have two choplist processes run it.  The server has heaps of 
spare load capacity to do this so that shouldn't be a limiting 
factor.  

Note that I am not much of a programmer but can muddle through an 
existing installation of SmartList to make do. :-)

Regards, Andrew