I'm a big fan of standardization, both from a member and admin standpoint. I have a few sites that, to the best of my current ability, are configured exactly the same way. They use the same XenForo style, run the same add-ons, have the same ad locations, etc. We're going to being development on a couple new features, as well as a refreshed style soon. My question is, does it make sense to create a separate development version of each of these sites, or will one work, if they're configured the same? I plan on continuing the standardized approach, and I'm guessing that keeping track of the changes and configurations across four dev sites is going to take a ton of time. I'd like to know which pros or cons I might not be considering.