Thanks for the responses guys. I did try DD's 5% setting and it gave a totally different "feel" to the car. I have been simracing for around 20yrs now and this is the first time that I have even contemplated the "settings" issue.
What it has clearly demonstrated thus far, is that I steer a car using the throttle, far more than I realised that I did. Dimitar's 5% worked with his setup ( although it felt wierd ) but when I tried it with one of mine, the car understeered like a super tanker!!
Geoff's comment regarding my snap oversteer is probably spot on, and I now need to find time/bother to do some practice runs, educate my right foot and get used to actually "steering" the car around a corner instead of provoking some oversteer and sliding through the apex with a handful of opposite lock.
Ah!? How to change the habits of a lifetime
This might be a slow evolution lol.