I had an annoying front wheel scrub issue that finally got the better of me today.....so i decided to take to it with a baseball bat...all fixed!!!!! I might start a DIY class....Fender Rolling 101...Maybe you will interested Nick????
1)Start by jacking up the car, i used a scissor jack which forces you to work slowly...most advisable.
2)Then use a heat gun to warm the fender lip of the section you are starting with (just hot to touch seemed to work well). Try and do sections of about 15cm at a time. The heat gun will give your paint some elasticity and prevent cracking. Warning!!! Too much heat will discolour your paint
3)Insert baseball bat here -> hahaha I used a stubby holder to protect any metal on metal scratching.
4)Slowly lower that car so that the weight returns to the front wheel. Do not lower the car completely, work slowly..patience is the key. Once the the bat is wedged between the wheel and the guard, start to roll the bat across the 15cm section of heated guard. Lower the car a little more and repeat... Continue until you have reached your desired clearance.
5) I had the bat angled so that the handle was on the floor during the rolling process. Seemed to work best.
I gained a about 5mm clearance and could probably go a little more, but at the moment its not necessary.