I don't get this "Run bad at showdown thing so must win non-showdown pots"? I don't even understand how you guys come up with these things lol. Just play solid every hand, and quit when you don't? Play less during downswings, play more during upswings. Less in winter more in summer.

If you do that downswings will affect you less since you play less, and they can prob always be proven by just looking at EV and feeling good for having a reason for your runbad. In the end, it's always about getting better at quitting, if we can save ourselves from losing those couple extra buyins from tilt/spew at the end of sessions, our downswings would be so much shorter.