Note that many of the rough-in valves that are threaded (male) allow you to insert the pipe into the fitting and solder it directly into the valve without any other fittings. Soldering it provides a bit more support and is immune to lousy female threaded fittings you may have that are difficult to seal properly.
Awesome - thanks for the heads up. I just looked at it for a few seconds when the wife brought it home. I'll look at it closer before installing it - that would be nice!