I getting ready to start my first spinning rod using the NGC system. I'm going to use #4s as my running guides. Has anyone built a 7' rod using 4s and what is the biggest line I could get away with using?

You'll be better off deciding what line type and size you're going to be using, and then mounting the proper sized guides to work with it.

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Thanks, I should have ordered 8s per the library info. I want to use 10-12 lb line. According to the article 4s wont be optimal.

4's might work fine, depending on the type line. Braid, almost for sure.

The smallest guides that will still easily pass your line and any required connections is what you're after.

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I'd go 6mm max. Some variables there....

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"Angling is extremely time consuming.
That's sort of the whole point." - Thomas McGuane

Scott,

It really depends on whether or not you plan to pass any knots through the guides. If not, 4s should work just fine as runners. After the line is tamed beyond the choke point, the guides only serve to constrain the line path. Test cast with 4s and larger guides to see if there is a difference, especially if it makes you uneasy. If considering 10-12lb. mono or fluoro on the rod, a 6mm tip top may be a consideration. As the line makes the turn from the rod to the lure as it passes through the tip top, the line may push up between the tip top and last guide making contact with the blank. It generally poses more of a consideration when spiral wrapping casting rods, but may matter to you in the case of a spinning rod as well.

The best advice I can offer when learning to work with the NGC system is to buy some reduction guides in all sizes from 20-30mm (for most freshwater or inshore types of builds) down to 6mm in V frames, Y frames, and Match frames. A low end set of each will set you back a few bucks, but will be invaluable in being able to see the differences and compare between the types. Best of all, you have the tools on hand to set up any build and only order the correct sizes of high end guides as needed. Granted, you may not find a need to use the V type frames, it's still nice to be able to compare the heights and weights of the guides.

Joe

I have 2 with size 4's. The size 4 will allow a bobber stop to pass through on 10lb or less mono, flouro or braid. It might slightly catch at times but otherwise works ok. I would use 5's or 6's if you are going to use bobber stops.

David Dosser
Coshocton, OH