Hi again,
what OmniMoAK told you is more or less the basics of all driving:
The correct braking technique:
threshhold -> applying full brake-force until turn-in.
trailbrake -> losening the brake in a smooth way from 100% to 0 while at all times applying as much braking-power as the wheels can take without locking when turning into and throughout a corner.
Trailbrake is usually used from turn-in up to hitting the apex of a corner. The lack in feel in your braking foot is compensated by
a) your force-feedback wheel making you eperience a lightened steering-force when oversteering/overbraking
b) your ingame-sound telling you one or more tyres are skidding at the edge of traction
a) usually won't come in a sudden burst and can be felt before b) gets serious. It is a fine line but with practice you will develop a feel for that.
Keep in mind that the XFG is front-wheel-drive. This means the front-tyres' grip is needed for both: acceleration/braking AND steering. You can only steer as effectively as the difference in
[ maximum traction _minus_ brake-force ] leaves you to do this. If your steering angle is spot-on but you understeer then release the brake a little more.
When brake-balance is set to less than 70%-ish at Front then the brake might help a little at turn-in under braking but on the other hand will make the car suffer oversteer when over-braking and the minimum stopping-distance in a straight line is prolonged to some (minor) degree. This is the first thing to learn when adjusting one's set-up. Try different settings for the brake-balance -> although anything out of the 60%...75% - front-based range will probably not be wise on tarmac racing
Some people mount skiddier intermediate-tyres on the rear axle to allow for less understeer on windy tracks. I wouldn't recommend that for anything other than hotlapping on blackwood. Stability will suffer since those tyres will heat up a lot faster than the standard-road-tyres after a few laps!
Keep on going fast and smooth
DrBen