I for one plan to use the 6.2 gcc version on disk-less netbooting nodes, and my workstations will soon be upgraded to RedHat 8.0 (when it arrives), so my vote would have been to maintain 3 versions.... (I have not voted on this poll BTW).
I respect your wish not to maintain 3 client builds, if the gcc 6.2 build goes, I'll just work on a different project on those disk-less nodes.