Using lite version for test renders

I'd like to install the lite version of SR at the place where I work, then hopefully later I can convince them to buy it. The render size that we normally use is larger than the lite version's max size of 1280 x 960. However, I'm wondering if the lite version might still be useful for test renders. So, the question is: If I do a bunch of test renders with SR Lite and get the scene tweaked to my liking, then do a full size render without SR, would the full size render look pretty much the same as the tests, or would all the settings be different?

Thanks, Jerome!