Well just as I was about to get my 911 off the omnipresent jackstands..Some of my synapses connected and I had an idea. I decided to shave the rain gutters on the 911 from the B pillar back. I have those feathers already in place on the A pillars. I figured this mod may help to the nTH degree.. In all it only took a few hours per side..
grabbed the sawz-all and excised the rain gutter