I don't have much experience with this, but I want to point out one thing. When you smell sulfur during fermentation, that is sulfur that is being removed from the beer and blown off into the air. Since there is a fixed amount of sulfur in the beer in the first place, the more you smell the less you will have left over in the beer. Once you bottle it, though, the sulfur is there to stay. It could be converted to a compound that is less offensive, though.
--GF