Allods Online Forum

That's because those are old builds.
When the game version of the calculator is updated, the chosen rubies do not change,
resulting in such builds, which can in general not be recommended

And there was also the problem in older ruby patterns that sometimes it was shorter to pass over an empty spot than to go around it through some unwanted spots

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Imagine arriving from above at 2. You really want 8 next, but you don't want anything from 1/4/7 nor from 3/6/9. 5 is empty. What you do is go 2-5-8 even though 5 doesn't have anything in it, because that costs one ruby between 2 and 8, not three.

Complicating matters slightly is the existence of the occasional ruby that you want to actually avoid having, like the old (might still be there for all I know) summoner one that prevented all your acid-based spells from working. If you have an acid-build summie, you avoid that ruby like the plague.