Green Stuff is a street pad - I recommend you run the Red Stuff, based upon what your car weighs (I think the Black pads are for much heavier cars). You will assuredly fry the Greens within a few laps, but you should get a full day out of the Reds (I used to get several days out of a set of Reds in my 500E, but given my heavy car & higher speeds of late, they last 45-50 miles or one session - my last time at The Glen I burned up 3 sets!).
Another thought: try to remember to compress your braking zones...brake as hard as you can, for as short a time as you can, and you will dramatically improve your braking components' lives. Plus, 'threshold braking' is a lot more repeatable than a not-very-consistent 60-80% braking effort.
Lastly, remember to look far, far ahead, as your car will go where you're looking. And have fun! I understand that's a fabulous track
