I'm building my first Fuji concept system on a Loomis SJ781 blank. I've read Mr. Kirkman's articles on this subject and applied the 27x principle to set the choker guide and running guides to the tiptop.
Here's the situation: Reel is a Shimano Symetre 2000 with 40mm spool diameter, so I set the choker guide at 1080mm/108cm/42.5" from top of spool. A total of five (5) size 6 guides, including choker, run at 4.5 inch intervals to the tip top (also size 6).
My problem is the reduction guides. There should be 3 guides below the choker and I'm struggling with the proper combination of sizes and heights and can't seem to get the concentric circles to appear.
Thanks in advance for your help!

the issue is usually getting the correct height. try using some taller framed guides(a-frame,vs3, or M style) and you may have to mix and match them to get it right. that is a light rod, have you considered going smaller than size 6 if your line/knot application allows?

What type guides are you using?

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Think I got it. Went with 25 high, 16 high, 10 low, then 6's to the tip top. I can see the bullseye now. Guides are fuji aconite save the 10 low. Thanks!

That’s pretty close and should work fine. I used pretty much the same setup, except I used a tall 8 instead of the low 10 back when I used gigantic guides like those.