In normal speed HUSNGs, certainly at basic levels, it is normal to minraise from the SB.
Occasionally, you get an aggro opponent in the BB, who will 3-bet hard. My own opinion is that this move is normally a pure steal. If SB holds a hand with any sort of equity, i.e. any pair, any ace, good suited connectors, Broadways, I suspect the right move is to 4-bet shove.
Thinking forward from that, there is an argument that, if the BB's 3-bet is so very likely to be a steal, then you can and should 4-bet shove PF with ATC, with a positive expectation.
What do the experts think?
