Reading about RC and RTM build i am still unclear about it all. But rechecking threads and keeping up with what crew are using seems the best bet. Go with what works and don't get too caught up with the build numbers. I am running 7077 on 4 machines at the moment 32 and 64 bit and both are working a treat. When the next build leaks (not counting 7106) i will check it out. Best way i have found is having dual boots on all machines and cycle installs on both partitions when the new one works and works well i move to that if not i nuke it and wait for the next leak.