Hi guys, Im new to PLO and had this situation a couple of times. Im in SB with lets say KKJ3ds and face a 3b from the BB 100bb deep vs unknown. Do you generally 4b or just flat? 

Does it matter if it is ds, ss or offsuite? I mean playability is nice when I flat, but on the other hand it gives me additional equity when it goes all-in. 

I realise that it depends a lot on the opponent, but Im just trying to find kind of a standard play vs unknown reg.