[Users] Combine Fedora and EL6

Greetings. Just have to ask... While having issues installing a node based on el6 I instead tried one based on Fedora (Same version) This seem to work just fine. I now see some other issues that I believe are unrelated still just to double check. Is it "supported" mixing nodes based on FC19 with an engine running EL6 and vice versa as long as the versions are the "same" ? Rgds Jonas