Has any one tried/compared the 17m XR4 to the Zephyr. The zephyr is a proven kite but not much literature is about supporting the 17m XR4. I'm toying with the idea of the XR4 as I'm assuming it'll have the same light bar pressure that my 12m XR4 has (borders on being too light). The bar pressure on my Zephyr is a beast when compared to XR4 and I can use the same bar and lines from my 12 with extensions on the kite to rig up the 17.