You can clone with
HTTPS or Subversion.
It is good to know if one can switch between the distributor types and/or buckets number in configuration. How this can be done, what is need to be taken into consideration.
It is not usually easy to choose the correct distribution configuration once so that it will fit the project needs til the end. Moreover, usually it is not feasible at all. Hence it is essential for users to know what are the options here, how to evolve distribution configuration along with project evolving.