I ran the very same pads at Watkins Glen (3.4 mi, 11 turn & quite fast) and destroyed the front ones just this past Saturday. The pads broke down and chunked, and appeared to leave a fair amount of material smeared on the rotor faces. The ride home was a nightmare-320 miles of trying to avoid using my car-rattling brakes. Last 2 sessions on the track were less than a blast, too; lesson learned, run track-specific pads on a track. No Way, no how will ANY street pad hold up on anything more than an autocross. I plan to pick up Porterfields next, but front only; the Textars do fine on the rear, at least for me. In your case I suggest EBC Red Stuff rather than Green for track use (I've used the Red several times and they worked well for me; however, they only lasted 100 miles of track use-1 day, 1 set of pads)
To remedy my situation, yesterday I had my rotors resurfaced and my brakes are back to normal (new Textar Yellow Box pads installed). FWIW I ran on day old Ate Typ 200 amber fluid (same as Super Blue) and it never boiled. Also, be advised I have E500 320mm directionally vented front brakes, and am running slotted rotors (had OE rotors CNC slotted locally).
As to slotted/drilled rotors, I'd stay away from drilled, and I'd only do slotted if you don't mind extra noise...they can be a bit louder than OE. And I can't say whether the slots help or not, but they look cool
I like SS lines. I got mine for under $100 at
www.germanautoparts.com; as I understand, they are fabricated on the West Coast by a dealer that races Porsches. My only reservation is that they don't clip properly in front, using the OE fasteners-I wrapped the brake line-SS line connection in Velcro to keep it from scuffing. In any case, make sure they are 3 layer SS/Kevlar/silicone lines.
I had excellent results with a set of Brembo rotors I got at the MBZ dealer once, but they were the only set I've ever had. Do they make them for your car? EBC makes a good product, so if they have this application then I'd be willing to try them.
Don't sweat any brake bias issues - you'll never know, even if you go to a VERY grippy pad (like the Green)
Lastly, brake ducts are a great idea - this winter I plan to rig a vent that will direct air into the hub area, thereby increasing the flow to the factory-designed brake cooling process. In the directional setups, air is drawn thru the rotors from the center outward, so I want to enhance this (there's already a hole in the backing plate, which I plan to attach the venting hose to)
Hope this helps
