Hi, regards brake pedal, iv'e only tried a few things.
Initially as bought (had them a bit ie plastic or nylon bushes in them, so whether new ones set up diff ?), & no tuning kit, brake pedal had too much play in it for me. Even after playing about with potensiometer, hard to get a quick reaction with a lot of brake force. But lots of range of brake force, with large pedal throw.
So i moved peg on pedal up a hole (be careful force to re assemble high, might turn your face a bit red etc), now it was easy to get on the brake & with lots of force. But now not as subtle with brake force, throw now very short. In fact potensiometer don't do much, had to have it all one way around (else brake pressure even on when not touching brake at all, i think ? forgot

). Anyway changed backed to original set up.
With tuning kit, iv'e set up as Delphic Reason ie pedal in original notch hole, but longer steel brake pressure pin & harder foam piece. To get a compromise of two setups above.
Havn't managed to test by actually driving, got to clear out room i use, stuff all over floor etc. But just pressing pedal & testing just pedals with PC SW, it looks promising ie between two setups already tried. Other way to try, at least for similar to above, is shorter steel pressure bar & move pedal up a notch. Prob a bit of difference between the two ways.
At least you can set up a few different ways for all the pedals. Left clutch as original, its stiff enough

, but do you want real life Car (specific car maybe) or easy to push. Same with accelerator, but i have put stronger spring on that, only stronger accelerator spring thou. Don't fancy a work out

, you might thou.
Cheers BOB
Edit, one thing, tuning kit ain't been a waste of time for me. Apart from new brass bushes, set up looks (& i should think, feels) better for me, than i would have got without it. Even with just a short mess with it.