Matt, Take it to Maidstone Motoliner. They straightened my 749 forged Marchesini beautifully for about 80 quid. R
Have you put a dial gauge on it to measure the run out? Might be within tolerance, especially if the disk runs true.
Another one for Maidstone Motoliner,great service.Did the spindle slide out ok as they are prone to bending ?
Bloody awful camera work!I nearly fell off my chair.Anyway,can you feel it when you ride?To be honest Ive had alot worse.