GenVibe - Community for Pontiac Vibe Enthusiasts

I'm a new member, just purchased an '04 Vibe to replace a worn out Ford Focus wagon. I cartop long kayaks and need 4'+ spread between the front and rear crossbars. I attached the rear Thule crossbar as far back on the factory rails as possible with a pair of Unisport rail feet, and the forward bar with Thule Traverse feet and Fit Kit 1512. This setup works OK, and my concerns may be more aesthetic than aerodynamic-- but because of the Vibe's arched roof the forward bar is 2" higher than the rear bar, which tilts the boats up at a noticeable angle; I'd prefer that they be level fore-and-aft. With the Thule feet my forward bar sits 4" above the roof, which seems excessive; does anyone know of a comparable setup from a different manufacturer which would clear the roof by just 2"? That would solve my problem (but since all my accessories clamp to rectangular Thule crossbars, a round Yakima bar won't work). This is my first post, will now try and attach a few photos. Thanks in advance for any advice out there!