Now before I watched this video: https://www.runitonce.com/poker-training/videos/bb-defense-vs-button-opens/?learn-path=plo§ion=Big%20Blind%20Play

I normally played this spot x/c because at this SPR I dont want to GII with bare top2. Now I saw similar spots were Nick checkraises top2, especially when having bdfd but did not mention what to do against 4bet, at least I dont remember. I cant see myself x/r/folding but also I think GII is waste of money so absoluetly clueless what is the right line here. Of course I also need to differ between reg and fish, whereas in this example the BU is regular