Hi Mr Craig,
How do you explain the things so nicely 
I had seen the similar requirement and suggested the solution which I mentioned here. Though there wasn't any need to pass the results to batch classification or any customized report, user accepted this solution since it only wanted to track the date of result recording, in a simpler way, whenever he need.
But what you explained, gave me a wonderful functional logic of keeping the data in the standard format along with its availability at batch master level and to any customized report.
I'll soon try your idea with my ABAPer and see what he can do.
Regards,
Nitin