MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Alright, here's the deal, I'm checking the fit, but since I have a couple people saying "it fits great' and another few saying "it's too tight" a little info about how it was printed, what kind of machine, and how it was sliced would be really useful. I have printed a dozen of these in different colors and they all fit my s4 very well. So it is possible our machines or slicing software is calibrated slightly differently. I am printing another right now in a new color to see how the new version of MakerWare handles it. My only hesitation in updating the file is in that I already tweaked the fit several times (hence the V4 in the file name) before I released the case on Thinigiverse.
I might also suggest that if the first one fits a little tight simply scaling the file in the long axis by a half a percent or so would fix it without distorting the shape too much.