regarding tcke, not exactly sure, but 90% it is indirectly dont forget there are other Misc lines not shown. What works though and confirmed by wolf (or thanks to wolf) tCL can tolerate +1 extra difference over the corresponding MISC-1 value. Also, you can change r2w and w2r freely for stability, that makes rules much different and easier, found a 1kh/s hynix (based on 1500 mhz strap though) with this way stable on hynix, non cooled at 2125 (few errors) this card used to do loads of errors @ 2025 mhz! and give 912 h/s with one click.
for Deep diving though need to mod a 1625 or 1750 since base tCL is 19, thus 20 when you +1
If your elpida crashes at 1950 with whatever timings, that's similar to mine, whether solder/bga issue or power problems.


Now i fully understand the MR0 ,MR8 etc but the DAMN Binary bits relation to the 4 Hex characters! omg.