My Dad seems to believe that Pacquaio and others preparing for a world title fight MUST at some point begin sparring with the same size gloves they are to fight with. He claims otherwise their timing would be off terribly and thinks that the face saver headgear means that sparring with fight gloves would be possible without risking cuts, serious injury, etc.

I've never heard of any pro fighters, boxers or mma, sparring with 8 oz gloves, or the same gloves they are to fight with.

The general rule for sparring is that you use 16 oz gloves, or in some gyms 14 oz.

Am I right ?