I will second this, I've had mine T500rs for over a year and Ive simply stopped using it any time I need to run fast because I just can't match my G25 times. And as you say, catching oversteer is very different, and much more difficult in my experience. This is because it gives big resistance to any counter steering, even when FF is set low.
It is nice that it has very little deadzone in the steering though. However the pedals have very large dead zones. This is due to the poor design in pedals not having a spring on the pot, so they had to program in deadzone to deal with the gear lash between the pot and pedal. the Logitech pedals (DFGT/G25/G27) generally have no dead zone at all.
Would be cool if they at least let you set the FF because it is very strong even at 5, much higher than a DFGT or G25/G27 at 5.
etc I used the t500rs i feel i wasted the first 8 days playing round with setting i found the fastest way to go was ps on ff down to 1 was getting faster every session with these setting ie set my time with 15 mins to go 
