Now, 2811 but I ran this brake setup when I was full weight too.
Glad it works for you, but if I'm spending money on a full track build, I would go 355 x 32. I can't imagine anyone could argue that it won't handle more heat. I'm pretty sure you have real brake ducting too?
I've got $600 tied up in my Macan setup, after selling the PP fronts, and it's working well with 345 x 30 mk6 R rotors. This car is years from being a full track car, so I still don't push it too hard. I'll be at Daytona Friday, but looks like showers, so meh, won't be too much of a test, but I've run FIRM twice with this setup and had no fade. My non-pp 18 would fade after 3 laps and start melting things.