One year ago I realized I'm very results oriented so I decided to not look into the cashier for a session. It was a real challenge at that time because I used to look in the cashier after every two minutes. You know how is it, most of the time it's not really about the money, it's probably a compulsive reaction of checking how you're running, reaction strongly connected with the level of anxiety. So I did it, I played without taking any glimpse of the cashier, so after about 4 hours of play (6max), I was completely shocked. I felt like I was robbed, I couldn't believed my eyes, have some sporadic thoughts like "they did something with my money" (this just being a more paranoid version of the classical "it's rigged") and trying to figure out how that robbery could have took place. As I remember, I lost about 10 buyins, though I estimated a loss of only 2-3 buyins, that difference explaining my reaction. Of course I quickly realized that it's not the platform, but my estimating incapacity.
I forgot this episode and tried to improve my game like the majority on this forum, by videos, hand analysis, and recently some good books.
Recently I had a long session played the same, not having a cashier sight for about 7 hours. It was incredible! I was so shocked again as I expected to have a profit of 2-3 buyins. It was +12 buyins! Before looking into the cashier I was prepared somehow even for a failure. During that session I played my A-game because I didn't know how I was running. I have a little problem, when I see I'm running hot I tend to quit the game. And if I don't quit the game I have two options: I play my B-game because I'm running very hot or I play my B-game because I' running very bad.
Seeing this I said "ok, let's make an experiment and play 35 days (it was 25 sept+oct) without checking the cashier". I played every day 5-6 hours with my initial 18 buyins (my total bankroll is 100 BI) in the cashier and couldn't estimate at all what happened at the end of each session. In the last 3 days I ran bad. Very bad! I will not explain you how bad I ran, important is that I had no tilt at all. I was expecting to see a message like insufficient funds. Usually, when I loose 3-4 flips in a row or loose AA vs KK two in a row I'm sayin to myself "Yeahh....suuure" this being my tilt manifestation and feeling uncomfortable for...maximum 10-20 seconds., but this period I had no tilt at all I was calmly prepared to lower the limit as if I did it every single day.
Today, because I'm not at home I had to switch the computers, having to play on the laptop and I saw accidentally the balance cashier. Shock! Again! 29 buyins were there!
So, what's the moral of the story? If you have my problems, try for yourself and see if it's working for you. Increase your bankroll buyins with 40-50% could be a solution, hiding the cashier for a certain period of time, two weeks seems reasonable or adjust it by your needs, but I strongly recommend to not be shorter then 3 days because you'll tend to see each session as a whole and be results oriented which you don't want to happen, don't wanna count this session was good, this was bad. Remember the cashier is only to cash out the money, or to check when you'll have the next shot.
As a curiosity, what's your longest period you haven't looked into cashier?