Can qmaster be told to work on one thing at a time?

Greetings all,
I have qmaster set to operate on my systems with managed resources and a controller. I originally was experimenting with running qmaster on two or three files at a time. This worked fine, and now I'm ambitious: I want it to work with 10+ files, while I'll set to run over night.
I'm running into two problems. First, when I set it to work with around 56 files (for a total of ~70 targets) it seemed to freak out and just stopped doing anything. I presume that overloads it, and I'm fine with doing ~10 jobs a night - that's not the focus of this post (but if anyone knows of a fix, advice would be appreciated). The problem is that qmaster seems to insist on copying the source file of every single file in queue to all computers involved. Each file is 10-20 GB and I'm finding that many times the systems' HDs will fill and cause the encodes to fail.
All of the systems are linked through a gigabit switch, and the source media is on an external pair of RAID 0 HDs connected to the controller via Firewire 800. All systems have the HDs involved mounted through the network, but of course they insist on copying the file to their internal HD. What I'd really like to do would be to somehow have qmaster only copy files as they're being worked on, and to have the systems work on one video at a time. I suppose this could theoretically be accomplished by splitting the batch up into smaller batches and submitting them at different priority levels... I don't mean to sound like a whiner, but what a hassle. Does anyone have any ideas? Thanks very much in advance!

Yes, i realize my solution needs the idea that followed it to be feasable in order to work properly. My bad!
I did wonder about using a combination like that, but I hoped it could all be done with one object. Ah well - just means adding an extra little bit of code. No probs.
Thank you anyway.
Never say "Oops." Always say "Ah, interesting!"

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