Very timely, Steve. We don't use feature flags here, but I'm thinking seriously of introducing them. I handle the application build & release. Right now, it's a manual process where I must get into TFS and change the setting on a task in the Release portion (we're working with an old version of TFS). This is error prone, as I tend to forget to change or before running a build/release, or I'll change that setting and forget to change it back after releasing a new version of software.
Martin Fowler's article is long, but I intend to read it and then present the idea to my team.
Kindest Regards, Rod Connect with me on LinkedIn.