Based on info posted so far, can you mix PS3's with GY F1's? (Both asymmetric and only per axle of course).
I'd personally be uncomfortable with that. The Michelins have a far stiffer carcass compared to the GYs - this was evident on your car at JKM last weekend. Even at slow-speed car park manovers, the sidewalls on the GYs were deforming quite alarmingly.
If you do wish to mix PS3s with GY F1s, stick the PS3 on the rear, and keep the squidgy F1s on the front.
If so, I can metamorphasise into Michelin man:
You can do, but you need to teach the man in white about the birds and the bees - a knee from behind is oh so wrong!
Start a new thread if you wanna go into more detail.