Well, I might overstated how slow it was to check them out in serial. They are still PITA thanks to specific behavior, missing features (both in git and in 3rd

Well, I might overstated how slow it was to check them out in serial. They are still PITA thanks to specific behavior, missing features (both in git and in 3rd party tools such as bitbucket), etc.. The benefits oftentimes overshadow the issues with them, but there are drawbacks to using them.