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