That is some very impressive latency. Your tertiary timings need work, as there is still about 5GB/s bandwidth left for you to obtain on your write bandwidth, and maybe another 3-4GB/s on read. As for RTL/IO-L, they are tricky. It's impossible for me to give you a value to input, as it's completely random based off your IMC, motherboard, and the specific IC's you are using. It's seriously the most brutal trial and error one can attempt when memory overclocking, and all I can say is, wire your reset button to clear CMOS if you intend to take that kind of challenge on.
If it were me, I would focus entirely on tertiary timings, and leave RTL/IO-L alone. You can still get a pretty significant difference in bandwidth from tertiary timings alone, while also improving latency a little more. As it sits now, your latency is already lower than 95% of all XMP kits on the market (even the 4266mhz kits) so congratulations on that. You also have plenty of memory bandwidth to go around. Anything beyond this point, is simply for bragging rights.
Bartholdi67 reacted to MageTank in Comprehensive Memory Overclocking Guide
