Limping UtG (theory, move if you feel wrong forum)

[DanielDayLewis]

I touched on this on a previous post but I am really curious.

I've noticed a lot more people limp UtG in HS games. I don't understand how this is +EV exactly (lets ignore shortstackes and their impact for now since people also do it in games w/o shorties).

Is limping your entire UtG raising range +EV? Is limping only part of it +EV? I don't understand what mistakes doing this would cause your opponents to make. Is the EV you gain by baing able to easily fold > the EV of taking down the blinds for free when the table folds?

Is it because u get paid off when BB raises KJs and you call with AK and stack him when K22 flops? Whereas he might have folded before? Is it a leveling thing "He is playing this so obviously like a low PP that it a set that he can't actually have it"?

What does an UtG limp generally mean in 6max games? in FR games? (I understand I can look this up in PT, but would like a bit of discussion).

I'd apprieciate any meaningful thoughts you have to contribute.