In pure EV it doesn't matter if do one or the other but what is your stance on this from a psychological standpoint?

Should you opt to RIT if you're prone to tilt if you get sucked out on or get it in bad?
Is the annoyance of splitting a pot you're favorite in bigger than the relief of saving your stack when you get it in as an underdog?
Since you don't know if someone runs it once or twice unless you take notes, can it be used to discourage certain opponent behavior?
Should you RIT when you take shots?

I've been RIT per default but I've been thinking about changing it. I should probably begin to take record of my own emotional response to RIT results before I decide what I feel about it.

What are your thoughts on it (please no discussion of EV, it's the same either way)?

i have twice, less variance

I do once simply because I feel I handle adversity better than my opponents. Chopping a pot isn't going to make them play worse.

Run it once,because playing deep stacked with 200BB or more will increase your Edge.

Once, FTW. Losing a buy-in or 6 shouldn't phase you.

Twice for me. Once we are all in our edge is gone so I'd rather run as close to ev as possible.