Hi All, it’s been a while since I last built a rod and I’m getting confused with all the new guide options. In the past I have typically built my rods with single foot Fuji ring guides. Now I see at least three different types of rings being offered for these guides (SIC, Alconite, and Concept O). Does anyone have any experience with these materials? I was leaning toward Alconite as the SIC are three times the cost. Also, does anyone have a formula to translate the guide size (I.e. 4, 4.5, 5 ...) to the inside diameter of the ring. Any comments would be most welcome as I’m about to start two trout rods built on St. Croix blanks.