You can cut the stock springs or you can heat the coil and let it sag. Don't get the shock itself too hot or you will ruin the seals and maybe have a dangerous fire show. The way I did it to Wendy's bike is order custom Hagon shocks from Bella Corse, lowered hers 2".

I learned all I need to know about life by killing smart people and eating their brains.
Eat right ,Exercise ,Stay fit, Die Anyway!