No, we don't have 4 pot calipers, just standard 135 brakes.
We have 6 cars in all, and coming out of one of the others into the TF, you realise just how bad the brakes are. And at the end of summer, the TFs go into hibernation, you get back into one of the other cars, brake and nearly go through the windscreen.
I did buy a strengthening bracket to stop flexing that is supposed to improve the feel of the brakes, not improve them, but never bolted it on.