What are the negatives for deployment using debug and performing user testing on the debug release.
I'd always use Release deployment to a User Test environment, but I'm just trying to put together a list of why you should do this and not deploy using debug.
On
You can release whatever you want, but you have to test exactly what you release (not some other form). Where as why you should prefer Release mode - answer
Testing should be done on the software that will be delivered to production. If you deliver a release version to production, testing a debug version is not as good as testing the release version.