PSA: 4 and 5 node cluster jewels are functionally the same

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Cluster jewels providing 4 and 5 nodes are functionally the same, point-wise, unless we are talking very very specific things where you actually want the 5th (minor) node. Getting 4 node medium cluster jewels on some of the more expensive combinations (of notables) is not worth the price premium. You just need to make sure the medium cluster jewel that provides 5 nodes has 2 notables AND a jewel socket.