The difference between the first and second seats is simply that the settlement of futures companies is completed through CTP or Jinshida or Hang Seng and Yisheng.
If the futures company is the chief, CTP doesn't have to pay.
If you have two seats, you need to pay extra for each CTP transaction.
There are still two seats, and the cost will be absorbed by the futures company.
So you can open an account in a futures company that doesn't need additional funds.