I think I've noticed that there is some type of relation between half of the enneagram types, and between the remaining half. You have to "jump" one type and wing for this relation. It goes like this:
Group 1: 1w9-2w1-3w2-4w3-5w4-6w5-7w6-8w7-9w8
Group 2: 1w2-2w3-3w4-4w5-5w6-6w7-7w8-8w9-9w1
These types in each group should have something in common. Wondering what you people think; if there is a connection. Maybe they are sync-flow and contraflow like the stackings? Group 1: Sync-flow and Group 2: contraflow?