Interesting, Olympic style fencing would seem to be the least effective in lightsaber because of the reliance on the full hand coverage and they way it is scored.
I've been using German longsword and focusing on adapting it to Djem So.
Actually, with the three different weapons, you get varying rules which each have applications. Different weapons in fencing have varying levels of hand coverage, and the techniques apply in interesting ways. For instance, epee has the full body target that lightsaber sparring employs.
Sport fencing is my background, I currently coach at Lafayette College (where I got my degree). I work with TPLA as a Headmaster, currently training two Apprentices through Makashi. Due to the fencing part, most people associate me with Makashi, but I don't really consider myself a master of any Form. Currently working on contributing more content to TPLA, and training in some Form V and VI aspects myself.