In below podcast (around minute 22), the guy describes how he has two separate accounts to be able to be both long and short at the same time. Is this something that you are not supposed to do but individual FCMs don't have responsibility to check?
What's the rationale for this kind of set up? This must work great in a range and the opposite side protects you if the range is violently broken in either direction?
Could've done this with options, just buy call + put at the same time with the same strikes