Forum:Was wondering about Synchro/Fusions for a Gemini deck?

I was looking at all the posts about Gemini Decks and I noticed that there were very few posts that said anything about synchros. Yet, their deck builds had tuners in them, and the only syncro anyone talked about was Black Brutdrago (I'm new to the forum and don't know how to do the links to the cards yet =/). I was just curious about keeping my Superalloy Beast Raptinius, because it has been so very nice in past duels that I wanted to keep it. Looking to hear people's thoughts, and advice. Thanks.