Try putting your taller shield on and get to speed where you have a problem then carefully squat down to a point where it feels decent and note about how many inches you had to get down for comfy ride and use that number for next w/s. My aftermarket shield is ok not much buffing but with half helmet alittle bit too much wind noise...............I have an old stock Goldwing w/s and I'm thinking of cutting it down using this method.