I like using single foot ceramic ring fly guides on my fly rods. I looked at Great Bay's saltwater rods on their website and it appears that is what they use on them. They aren't as large as a normal spinning guide, and they aren't as heavy, either. I use #6 rings for my running guides most times. If you look at the Batson website (from the FAOL sponsor page), you can see that style of guide there. Look at the F style of guides.
In my experience, the single foot ceramic guides do 2 things for you. They keep the line off of the rod, and they are slicker than wire, so between the 2, I feel they shoot line better. The downside is that there is a minimal weight penalty. I personally don't think it is a significant amount, but there are some who feel that it is. It's all personal preference, but everything I build anymore uses them.
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FFMIRSWTNBOF (Full Fledged Member in Raunchy Standing-Within The NBOF)