The lack of pedal feel with a DFGT has a better solution. ABS OFF! Lack of brake feel has always made GT5 feel too arcadey to me.
Last night I tested out a couple fully stock cars offline with ABS OFF and kept adding sponge resistance until I could actually feel some real brake modulation. Without adaquate resistance it's really difficult to feel any pedal so that's THE major reason ABS OFF initially seems impossible. The car just locks up. Well that and proper BB settings.
First used a stock 89 Miata/ comfort hards @Tsukuba. bb of 4/2. Wow! Suddenly I was able to modulate the brakes partially to slow the car just enough. Checking the brake indicator showed 30-50% to match my input unlike the instant 100% with ABS OFF. Went back to ABS ON @6/4 and hated it. Brakes either on or off. Really showed me how much ABS ON is a brake assist.
https://www.gtplanet.net/forum/showthread.php?p=6921935
Amar's post down this page has some great info on BB settings that will eliminate that dreaded rear lock up. The default 5/5 is too hard to use for sure but I always change up the settings anyway.
Certainly not suggesting running ABS OFF in our races! But between running cockpit view and experimenting with trying to get some realistic brake feel, GT5 is so much more involving. Running with it off ensures proper straight line braking technique, modulation and a light touch in trail braking are used. In my down time I'm playing around offline attempting to turn GT5 into as much of a simulator as I can.
Sorry this is so long but I know most of us want more realism and driver envolvement.