Mr. Dawson is a portfolio manager who is responsible for the account of the Pizza Delivery Personnel Union (PDPU). At this time, the trustees have not authorized Mr. Dawson to take positions in Treasury bond futures contracts. At his quarterly meeting with PDPU's board of trustees, Mr. Dawson requested that the board grant him authorization to use Treasury bond futures to control interest rate risk. One of the trustees asked whether it was necessary to use Treasury bond futures contracts to control risk The trustee noted that Mr. Dawson already had authorization by the investment guidelines to short Treasury securities, and that should be sufficient to control interest rate risk when combined with the opportunity to buy Treasury securities. What advantages could Mr. Dawson present to the trustee for using Treasury futures contracts to control risk, rather than using Treasury securities?