Has anyone ever upgraded to the Vortex or Driven gas caps? I want to upgrade to the Driven, but wondering if I can then cap off the fuel vent line under the tank. The Driven cap has a built in vent. I'd imagine that I'd have to leave the overflow tube, but can't find a definitive answer out there about the vent hose. I don't see why I'd need the bottom vent hose if it vents up top. I hate the run out on the driveway from the vent tube on hot days. Eats away at the blacktop which is no bueno. Not to mention the 10 or so people at work that tell me my bike is leaking something and it smells like gas. LOL! Here's a link to the driven gas cap base. [ame="http://www.amazon.com/Driven-Racing-D-Axis-Fuel-Base/dp/B00AC6VJ3O/ref=sr_1_1?ie=UTF8&qid=1425786720&sr=8-1&keywords=driven+racing+fuel+cap+fz6r"]Amazon.com: Driven Racing D-Axis Fuel Cap Base - Yamaha DFCB-YA: Automotive[/ame]