As i have got more used to my car now, im now finding it understeers when pushing fairly hard into/out of the twisty bits, im currently on std suspension,the geometry is supposedly set to prodrive spec and its wearing F1's.

Thanks in advance for any help

Bumpsteer removal, antilift kit, going into corners slower, steering more smoothly (smoothness with the gas, coming off the brakes etc), and if you are adventurous trail braking into the corner (not recommended unless you want to get intimate with roadside furniture). Road positioning is also crucial - don't get into oncoming traffic when approaching a left hand bend, but come a bit wider, hold the wide line until you can see your exit and then go for it - that way you don't end up having to put more lock on mid corner which can end up with you understeering. Drive through the corner on gentle power and power out at the apex (if you have a lot of torque need to wait until the front wheels are much straighter before flooring it).

could also try sorting any worn anti-roll bar bushes and then try experimenting with diff. sized bars to make the car more neutral!!
alyn - as performance

Try putting your rear wheels on the front (and the fronts on the rear or it will spark)....I changed mine over a while back, made such a difference to my (then) understeer probs.

Now have new tyres, much better :)

As JB says...smoother driving.

Smoother in - apex - nail it :D

I was going to suggest the Prodrive geometry, but you already have that - made a difference to my 99MY Also try experimenting with tyre pressures.
JohnD

ive found the best way to get rid of understeer is to drive the car with the WIFE! in she will complain about the speed that much understeer/oversteer will be a problem no more

cheers peeps,plenty for me to try then.---stevebt LOL.