Actualy the requirements are: 250h as a PIC which at least 70h as to be perform as a PIC and the remaining hours can be as PICUS.
So you can have 240h PIC and 10 as PICUS. I'm just pointing the minimuns.
If you are loging the hours in the PIC field and you have a remark PICUS signed by the designated PIC. You are not loging hours as a PIC! You are Copilot doing pf dutties, since the capt tells you: "you have control"
Because in my case i just have 4 fields: PIC, copilot, dual comand and instructor.
I think that later when u became a capt you just have to separate the hours that you have as a designated PIC and the hours that you perform as a PICUS (copilot performing PF dutties)
Am I right?