I did this year when trying to pattern my SBE2. On this gun I have a SpeedBead mount, protector, and sight. I only used the gasket between the protector and mount. I only had one of the gaskets and debated on where to put it, I obviously chose wrong so I contacted Burris to get extra gaskets and they sent me 3. I am going to gasket between each connection and then see if it holds. I am also going to blue loc tight the threads on the mounting screws. I have a SBE with 336 base, gasket, protector, and then sight and so far have not had any problems going on 3 years but I think I will pull sight after season and apply gaskets between all connections. Good luck with your set up I know that I love hunting with the FF, IMO I think its the best sighting system out there for turkey hunting.
Ridge Rooster