I'm finally plumbing in my dust collection system, and I have questions about what you all have founds works well in hooking up the planer, since the point of collection moves as the planer head is raised or lowered. I'm coming off the head with a 6" HVAC fitting. My initial thought was to have two 45s to a vertical piece of flex long enough to accommodate the raising or lowering of the planer head, and that attached to a 6" drop from the main. I've seen pics of people who have come horizontally off the planer with the flex line instead. I'm wondering what people's experience is with the two setups.