It is hard to tell from that picture, what track the air collected by that GW vent follows. But it would seem to be very similar to just removing the inner cowls on the ST,, which then provides cold air dilution to the hot air exiting around the cylinder heads. Regarding the low pressure zone trapping hot air in front of the rider,,, I took 2 steps that dramatically reduce the tendency. One,,, eliminate any gap at the seat tank junction. Two, I raked my windshield slightly,,, to flow more air up the back of the shield, which equalizes the pressure. There is already a lot of cool frontal air flowing up past the triple tree. Cheers, Cat'