Careful, even increasing RAM timings can cause instability

I've just spent 4-5 hours debugging an issue that I caused myself. I accidentally raised tWTRL from 20 to 24 when experimenting and forgot that 20 was the original stable value. I tried to keep raising it to 28, 32... nothing helped until I remembered I have a flash drive with saved bios settings, and there I found a stable value is actually 20. So I want to educate others, higher timing doesnt always mean more stability, the whole timing system is complicated and sometimes raising timings actually causes instability, much smarter experts than me told me tWTRL=20 is too low and it should be 24.

Also I would like to add that y-cruncher is officially the fastest software to find RAM instability, everything else was running fine for 30-60 minutes until it spit errors even though my games were crashing daily, y-cruncher usually found an error within minutes. The exact setting i run is this one and it has never finished successfuly if my ram was unstable.

"C:\...path...\y-cruncher.exe" stress -TL:1441 VST VT3